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Three stories from the last week that connect in ways worth understanding properly.

Here's what we're covering:

  1. $2.5 trillion wiped off the Nasdaq in a single day — is the AI bubble finally bursting?

  2. SoftBank's shares plunged 11% — and the cost of insuring its debt against default hit a four-year high.

  3. A French bank wants to create Italy's third-largest lender — and the market's reaction tells us a lot about M&A.

This week, we're looking at three different sides of financial markets: equities, credit and mergers and acquisitions.

And as always, we'll go beyond the headlines to understand what happened, why it matters, how it affects banks and their clients, and how to discuss it intelligently in interviews.

Let's get into it.

FYI – I have 1 spot available on my 3-month and 6-month 1:1 coaching programmes (24/7 access to me via slack, weekly calls, unlimited mock interviews, offer guarantee, etc.). If you’re interested, email me your CV to [email protected] so I can see if you’re a strong fit.

1. $2.5 Trillion Wiped Off the Nasdaq in a Single Day

Last Thursday was brutal for technology investors.

The Nasdaq fell approximately 5.5% in a single session, its biggest one-day decline since April 2025.

Around $2.5 trillion in market value disappeared from the index.

The sell-off spread across global markets, hitting semiconductor companies, AI infrastructure businesses and technology stocks more broadly.

By the end of the week, the Nasdaq 100 had fallen approximately 5%.

And Wall Street's fear gauge, the VIX, had climbed above 28 during Thursday's session, its highest level since March.

But here's the interesting part.

AI hasn't suddenly stopped working.

Companies are still using AI.

Technology businesses are still developing increasingly powerful models.

Data centres are still being built.

And demand for computing power hasn't disappeared overnight.

So why have investors suddenly become so nervous?

The answer comes down to the difference between a good business and a good investment.

Imagine a company generates $10 billion in annual earnings.

Investors believe those earnings will grow rapidly, so they're willing to value the company at 50 times earnings.

That gives it a market capitalisation of $500 billion.

Now imagine investors become less optimistic about future growth.

They still believe the company is excellent.

They still expect it to generate billions in profits.

But instead of paying 50 times earnings, they're now willing to pay 30 times.

The company's valuation falls from $500 billion to $300 billion.

That's $200 billion wiped off its market value without its current earnings changing at all.

This is called multiple compression.

And it's one of the most important concepts to understand when analysing growth stocks.

A share price doesn't simply reflect how well a company is performing today.

It reflects what investors expect the company to achieve in the future.

When those expectations change, valuations can move dramatically.

And that's exactly the problem facing AI stocks.

For years, investors have been willing to pay enormous valuations for companies expected to benefit from artificial intelligence.

But those valuations require extraordinary future growth.

Companies must not only increase revenues.

They must generate sufficient profits and cash flow to justify the hundreds of billions being invested in AI infrastructure.

And investors are increasingly questioning whether that will happen quickly enough.

There's another problem.

The technology sector now represents more than 35% of the S&P 500.

That means when technology stocks experience a sharp sell-off, the consequences extend far beyond investors who deliberately bought AI companies.

Imagine you invest £10,000 in a fund tracking the S&P 500.

You might think you're diversified across 500 large American companies.

And you are, to an extent.

But because the index is weighted by market capitalisation, its largest technology companies account for a substantial proportion of your investment.

If those companies fall sharply, your supposedly diversified portfolio can experience significant losses.

This is called concentration risk.

And it matters enormously for asset managers, pension funds and wealth managers.

There's also a potential feedback loop.

AI stocks fall.

Investors become nervous.

Some funds reduce exposure.

Others face withdrawals or margin calls.

They sell additional assets to raise cash.

That selling can push prices lower, encouraging further selling.

Not every correction develops into a crisis. Reuters reported that bond and funding markets remained broadly orderly despite rising volatility.

But the mechanism explains why investors pay close attention to signs of stress spreading beyond equities.

How to use this story in interviews

1. Know what happened

The Nasdaq suffered a 5.5% one-day decline on Thursday, wiping approximately $2.5 trillion from its market value. Investors have become increasingly concerned about AI valuations, infrastructure spending and future profitability.

2. How does it impact the firm?

For investment banks, sharp market movements can increase client trading and hedging activity, but they can also create losses and greater counterparty risk.

For asset managers and wealth managers, falling markets can reduce assets under management and put pressure on fee revenues.

3. How does it impact the division?

  • Sales & Trading: Greater volatility can create demand for hedging and market-making, but managing inventory becomes more challenging.

  • Asset Management: Portfolio managers must reassess valuations, concentration risk and exposure to technology.

  • Wealth Management: Advisers need to help clients manage volatility without making emotional investment decisions.

  • Investment Banking: Lower valuations can make IPOs and equity issuance less attractive, while potentially creating acquisition opportunities.

  • Risk: Monitor leverage, liquidity, counterparty exposures and the possibility of forced selling.

4. How does it impact clients?

Institutional investors may need to rebalance portfolios or hedge technology exposure.

Wealth management clients may become concerned about losses in portfolios heavily exposed to US equities.

Technology companies considering IPOs may delay their listings until market conditions improve.

5. What's your opinion?

"I think the correction is a useful reminder that being positive on AI as a technology isn't the same as being positive on every AI-related stock. My concern isn't necessarily that AI demand will disappear, but that valuations may have priced in years of exceptional growth. I'd be looking for companies with strong free cash flow and sustainable competitive advantages rather than simply buying whichever company has the greatest AI exposure."

6. What would you watch next?

I'd watch upcoming earnings from Nvidia, CoreWeave and other AI infrastructure companies.

More importantly, I'd focus on whether revenue and free cash flow are growing quickly enough to justify capital expenditure.

I'd also monitor the VIX and credit spreads for evidence that the equity sell-off is spreading into other financial markets.

2. SoftBank's Shares Plunged 11% — and Its Credit Risk Hit a Four-Year High

SoftBank has become one of the most aggressive investors in artificial intelligence.

The Japanese investment group has committed enormous amounts of capital to companies and infrastructure connected to the AI boom.

And for much of the year, that strategy has attracted considerable attention.

But last Friday, investors became significantly more nervous.

SoftBank's shares fell approximately 11% in a single session.

At the same time, the cost of insuring its debt against default reached its highest level in four years.

The five-year credit default swap spread widened to approximately 466 basis points.

That might sound like an obscure financial statistic.

But it's actually one of the most useful ways to understand how credit markets assess risk.

Here's how credit default swaps work.

Imagine you're an institutional investor holding $10 million of SoftBank bonds.

You're entitled to receive interest payments and eventually repayment of the principal.

But you're concerned that SoftBank's financial position could deteriorate.

You want protection.

So you purchase a credit default swap, or CDS.

A CDS is a derivative contract that provides protection against specified credit events, such as a default, under the terms of the contract.

In exchange, you pay a regular premium.

That premium is quoted as a spread in basis points.

At 466 basis points, the quoted annual premium is equivalent to approximately 4.66% of the insured notional amount.

On $10 million, that's roughly $466,000 per year, ignoring upfront payments, accrual conventions and other contract details.

That's a substantial cost.

And when CDS spreads widen, it generally means investors are demanding more compensation to take on credit risk.

So what does SoftBank's widening CDS spread tell us?

It tells us that the market has become more concerned about SoftBank's ability to meet its financial obligations.

That doesn't mean default is inevitable.

CDS spreads reflect several factors, including perceived default risk, expected recovery rates, liquidity and broader market conditions.

But the direction of the move is important.

Investors are becoming less comfortable with the company's risk profile.

And this is where SoftBank's AI strategy becomes relevant.

SoftBank has enormous exposure to AI-related investments, including OpenAI.

But many AI companies are still investing heavily in infrastructure and developing business models that may take years to generate sufficient cash flow.

That's a problem when investments are financed using debt.

Because debt doesn't wait for your investment thesis to become correct.

Imagine SoftBank borrows $10 billion to finance investments it expects to appreciate significantly over the next five years.

If those investments double in value, the strategy could be enormously profitable.

But what happens if valuations fall 40% before the investments can be sold?

The value of SoftBank's assets declines.

Its financial flexibility may weaken.

But the debt remains outstanding.

Interest payments still need to be made.

And if the company needs to refinance that debt, lenders may demand a higher interest rate because they now perceive greater risk.

This creates a potentially dangerous cycle.

Asset values fall → Credit risk rises → Borrowing becomes more expensive → Financial flexibility weakens.

It's a useful example of why leverage amplifies both gains and losses.

And there's another important detail.

OpenAI's public listing has reportedly been pushed back to 2027.

For an investor such as SoftBank, a delayed IPO can matter because it postpones a potential opportunity to realise gains or obtain a publicly traded valuation for an investment.

That doesn't automatically mean SoftBank needs to sell.

But it can increase uncertainty about when and how an investment might be monetised.

The most interesting part is the relationship between equity and credit markets.

Equity investors are concerned about how much SoftBank's investments might ultimately be worth.

Credit investors are concerned about whether SoftBank can meet its financial obligations.

They're analysing the same company, but asking different questions.

Equity investors focus heavily on upside.

Credit investors focus heavily on downside protection.

And understanding that distinction is extremely valuable in finance interviews.

How to use this story in interviews

1. Know what happened

SoftBank shares fell approximately 11% on Friday, while its five-year CDS spread reached around 466 basis points, its highest level in four years, amid concerns about AI valuations and investment returns.

2. How does it impact the firm?

Banks lending to highly exposed AI investors may face greater credit risk.

At the same time, increased demand for credit protection and risk management can create opportunities for trading desks.

3. How does it impact the division?

  • Debt Capital Markets: Higher credit spreads can make issuing new bonds more expensive.

  • Sales & Trading: Credit derivatives desks may see greater demand for CDS and other hedging instruments.

  • Asset Management: Credit investors must decide whether higher yields adequately compensate for the risk.

  • Investment Banking: Companies facing tighter financing conditions may need capital raising, asset sales or restructuring advice.

  • Risk: Assess leverage, asset valuations, liquidity and refinancing requirements.

4. How does it impact clients?

Institutional investors holding SoftBank debt may experience mark-to-market losses as credit spreads widen.

Corporate borrowers with similar exposure to AI could face more expensive financing.

Investors may become more selective about lending to companies whose asset values depend heavily on private technology valuations.

5. What's your opinion?

"I think SoftBank is an interesting example of the difference between an attractive long-term investment theme and a sustainable financing strategy. AI may create enormous value over the next decade, but highly leveraged investors still need sufficient liquidity and financial flexibility to survive periods of volatility. I'd be more concerned about refinancing and liquidity risk than short-term share-price movements alone."

6. What would you watch next?

SoftBank's upcoming earnings will be particularly important.

I'd watch its debt levels, liquidity position, investment valuations and management's comments on its AI strategy.

I'd also monitor whether CDS spreads continue widening or begin to stabilise.

If the cost of credit protection remains elevated even after equity markets recover, that could suggest investors have more persistent concerns about SoftBank's financial position.

3. A French Bank Wants to Create Italy's Third-Largest Lender

While investors were worrying about AI, something interesting happened in European banking.

French banking group Crédit Agricole announced a proposal to combine its Italian subsidiary with Banco BPM.

The proposed combination would create Italy's third-largest bank.

And the stock market's reaction was immediate.

Banco BPM shares jumped approximately 10% on Monday.

Crédit Agricole shares fell around 1%.

Two companies involved in the same potential transaction.

One company's shares rise.

The other's fall.

Why does this happen?

It's one of the most important concepts to understand in mergers and acquisitions.

When a company announces that it wants to acquire another business, investors often expect the buyer to pay a premium.

Imagine Company A is trading at £10 per share.

Company B offers to acquire it for £12 per share.

That's a 20% takeover premium.

Why would Company B pay more than the prevailing market price?

Because it believes owning Company A will create additional value.

Perhaps the businesses can reduce overlapping costs.

Perhaps they can sell more products to each other's customers.

Perhaps the combined company will have a stronger competitive position.

Those benefits are called synergies.

And in banking, synergies can be particularly significant.

Here's an example.

Imagine two banks operate across Italy.

Both have branches.

Both employ technology teams.

Both maintain compliance systems.

Both operate customer-service infrastructure.

If they merge, they may not need to maintain every duplicate function.

They could consolidate branches, integrate technology platforms and reduce overlapping administrative costs.

Suppose those changes generate €500 million of annual cost savings.

At a simplified 25% tax rate, that's €375 million in annual after-tax savings.

If investors value those savings at 10 times annual earnings, they could theoretically represent €3.75 billion of additional value.

That's why acquirers may be willing to pay a premium.

But here's the catch.

Synergies are not guaranteed.

Merging two banks is complicated.

Technology systems may be difficult to integrate.

Employees may resist changes.

Regulators may impose conditions.

Customers may leave.

And restructuring costs can be substantial.

So investors need to decide whether the expected benefits justify the price and risks of the transaction.

That's one reason the target company's shares often rise while the buyer's shares may fall.

Target shareholders may benefit from the prospect of a premium.

Acquirer shareholders may worry that management is paying too much or taking on excessive integration risk.

That doesn't mean the deal is necessarily bad for the buyer.

It means the market is assessing the balance between expected benefits and costs.

There's also a regulatory dimension.

Banking is not an ordinary industry.

Banks are critical to the functioning of the financial system.

Regulators care about capital adequacy, competition, financial stability and the potential consequences of a large institution failing.

A merger that makes commercial sense may still face significant regulatory scrutiny.

And because this proposed combination would create Italy's third-largest lender, competition and regulatory considerations are particularly important.

The proposal also comes amid a broader period of consolidation activity in European banking.

UniCredit has been pursuing its own strategic ambitions involving Germany's Commerzbank.

That raises an interesting question.

Are European banks entering a new period of consolidation?

For years, many European banks struggled with low interest rates, weak profitability and fragmented markets.

Higher interest rates have helped improve profitability at many lenders.

But banks still face pressure to improve efficiency, invest in technology and achieve scale.

Mergers can potentially address some of those challenges.

The question is whether the financial benefits outweigh the costs and regulatory complications.

How to use this story in interviews

1. Know what happened

Crédit Agricole proposed combining its Italian subsidiary with Banco BPM to create Italy's third-largest bank. Banco BPM shares rose around 10%, while Crédit Agricole shares declined approximately 1%.

2. How does it impact the firm?

For investment banks advising on transactions, European banking consolidation can create opportunities to earn M&A advisory and financing fees.

For banks considering acquisitions themselves, consolidation can offer greater scale but also create integration and regulatory risks.

3. How does it impact the division?

  • Investment Banking: Analyse transaction structure, valuation, synergies, financing and regulatory approval.

  • Equity Research: Assess whether the expected synergies justify the acquisition premium.

  • Sales & Trading: Merger announcements can generate trading and hedging activity in the companies' shares and debt.

  • Asset Management: Investors must decide whether the deal creates long-term shareholder value.

  • Risk: Evaluate capital requirements, integration risks and concentration exposures.

4. How does it impact clients?

Corporate clients may benefit from a larger banking group with greater lending capacity and broader services.

However, reduced competition could affect pricing and choice.

Shareholders in the target may benefit from a takeover premium.

Shareholders in the acquirer must assess whether management can deliver the promised benefits.

5. What's your opinion?

"I think consolidation in European banking makes strategic sense where it allows institutions to improve efficiency and spread technology and compliance costs across a larger customer base. But I'd be cautious about assuming that bigger automatically means better. The success of the transaction will depend on the price paid, the realism of the synergy assumptions and the ability to integrate the businesses without disrupting customers."

6. What would you watch next?

I'd monitor the proposed transaction terms, management's synergy estimates and the regulatory response.

I'd also watch whether other European banks pursue similar combinations.

If this transaction progresses successfully, it could strengthen the argument for further consolidation across the sector.

Final Thoughts

Three stories this week, one underlying lesson.

The Nasdaq lost trillions in market value as investors questioned the valuations of AI companies.

SoftBank's borrowing risk increased sharply as investors became more concerned about the financial consequences of its AI exposure.

And European banking shares moved in opposite directions following a proposed merger.

At first glance, these are completely different developments.

But they're all about one fundamental question:

What is something worth, and how much risk are you willing to take to own it?

Equity investors are asking whether AI companies are worth the enormous valuations assigned to them.

Credit investors are asking whether companies such as SoftBank can safely support their financial obligations.

And shareholders in European banks are asking whether the value created by a merger will exceed the price paid and the risks involved.

Three different markets.

Three different types of investors.

But the same underlying principle.

The price you pay matters.

An excellent business can be a terrible investment if you overpay.

An exciting technology can create enormous economic value while some of the companies financing it lose money.

And a merger can make perfect strategic sense while still destroying shareholder value if the acquirer pays too much.

That's the kind of thinking I want you to develop.

When you're reading financial news, don't stop at what happened.

Ask yourself:

1. What happened? Understand the facts, numbers and context.

2. How does it affect the firm? Think about revenues, costs, opportunities and risks.

3. How does it affect the division? Connect the story to the work the team actually performs.

4. How does it affect clients? Consider how corporations, institutional investors and individuals might respond.

5. What's your opinion? Develop a balanced view supported by financial reasoning.

6. What happens next? Identify the developments that would support or challenge your view.

You don't need to predict markets perfectly.

You need to demonstrate that you understand the financial mechanisms behind the headlines.

That's what genuine commercial awareness looks like.

That's all for now. Have a good week ahead!

Afzal

P.S. I have 1 spot available on my 3-month and 6-month 1:1 coaching programmes (24/7 access to me via slack, weekly calls, unlimited mock interviews, offer guarantee, etc.). If you’re interested, email me your CV to [email protected] so I can see if you’re a strong fit.

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