Why Is SBI Stock Cheaper Than Private Banks Despite Strong Profits?

State Bank of India (SBI) is India's largest bank by assets, with strong loan growth, improving asset quality, and rising profits. Yet, despite its improving financial performance, SBI shares trade at a much lower valuation than leading private banks like ICICI Bank and HDFC Bank.

SBI currently trades at a price-to-book (P/B) ratio of just 1.47, nearly 50% lower than ICICI Bank. This means investors are willing to pay significantly more for private banks, even though SBI operates a much larger banking business.

So, why does SBI trade at such a discount? Is the stock undervalued, or are private banks fundamentally more profitable?

How Does SBI's Valuation Compare With Private Banks?

Banking stocks are commonly valued using the P/E and P/B ratios. The P/E ratio compares a bank's share price with its earnings per share, while the P/B ratio compares its share price with its book value per share.

For example, a P/B ratio of 2 means investors are paying ₹2 for every ₹1 of the bank's book value.

Here is how SBI compares with four leading private sector banks.

Source: Screener.in, data as of 12 November

SBI trades at the lowest P/E and P/B ratios among these five banks. Its P/B ratio is approximately 50% lower than ICICI Bank's and 29% lower than HDFC Bank's.

However, a lower valuation does not automatically make a stock undervalued. Investors also consider how efficiently a bank generates profits, manages risks, and maintains growth.

Why Do Private Banks Trade at Higher Valuations Than SBI?

One of the biggest reasons behind SBI's valuation discount is the difference in profitability.

Return on assets (ROA) measures how much profit a bank generates from its total assets, including loans and investments. A higher ROA indicates that a bank earns more profit relative to the size of its business.

In Q2 FY27, SBI reported an annualised ROA of 1.19%, compared with 2.26% for ICICI Bank and 1.78% for HDFC Bank.

This means ICICI Bank generated nearly twice as much profit per rupee of assets as SBI, despite SBI operating a much larger banking business. SBI's reported ROA also benefited from a one-time stake-sale gain during the quarter.

Another important difference is the net interest margin (NIM). It measures how much a bank earns from lending after accounting for its funding costs, relative to its interest-earning assets.

In Q2 FY27, SBI reported a NIM of 2.94%, compared with ICICI Bank's 4.18%.

Higher margins help banks generate more income from their lending activities. This difference in profitability helps explain why investors may be willing to pay a higher valuation for ICICI Bank despite SBI's larger business.

SBI's Q2 FY27 Results Show Strong Growth

Despite trading at a lower valuation, SBI's latest quarterly results indicate that its banking business continues to expand.

In Q2 FY27, SBI reported a standalone net profit of ₹23,038 crore, an increase of 14.28% YoY. Its net interest income, which represents the difference between interest earned and interest paid, increased 14.69% to ₹49,143 crore.

The bank's gross advances also increased 17.84% to ₹52.08 lakh crore.

However, there is an important detail behind SBI's reported profitability.

SBI's Profit Includes a One-Time Gain

During Q2 FY27, SBI recorded an exceptional pre-tax gain of ₹7,288 crore from selling a 6.30% stake in SBI Funds Management.

This transaction contributed to the bank's reported profit but was not part of its regular lending operations.

SBI had also recorded a one-time pre-tax gain of ₹4,593 crore from selling part of its YES Bank stake in Q2 FY26. Therefore, exceptional gains contributed to profitability in both periods.

This matters because investors generally place greater value on profits that a bank can generate consistently through lending, interest income, and other regular banking activities.

For comparison, ICICI Bank reported 20.1% YoY growth in standalone net profit to ₹14,843 crore in Q2 FY27. Its core operating profit, excluding treasury income, increased 21.8%.

SBI's headline earnings are strong, but the contribution from exceptional transactions makes it important to examine recurring profitability before comparing its performance with private banks.

SBI's Bad Loans Are Falling, But Is That Enough?

One of the strongest improvements in SBI's business has been the reduction in bad loans.

Banks classify loans as non-performing assets (NPAs) when borrowers fail to make repayments for a specified period, generally more than 90 days. A lower NPA ratio indicates that fewer loans have become problematic.

SBI's gross NPA ratio declined from 1.73% in Q2 FY26 to 1.39% in Q2 FY27. Its net NPA ratio also improved from 0.42% to 0.36%.

The bank's credit cost also declined to 0.22% from 0.39%. Credit cost measures the expense associated with potential loan losses relative to lending.

Lower credit costs can support profitability because banks need to set aside less money against potential losses.

However, ICICI Bank continues to report slightly better asset quality, with a gross NPA ratio of 1.20% and a net NPA ratio of 0.30% in September 2026.

SBI has significantly improved its loan quality, but private banks still maintain an advantage in some profitability and asset quality measures.

Additionally, as bad loans reach already-low levels, there may be less room for further reductions in credit costs to support earnings growth. SBI may increasingly need to rely on stronger lending income and operating efficiency to improve profitability.

Does Government Ownership Affect SBI's Valuation?

Another difference between SBI and its private sector peers is ownership. SBI is controlled by the Government of India, while ICICI Bank, HDFC Bank, Axis Bank, and Kotak Mahindra Bank are privately managed institutions.

Government ownership can influence how investors assess business flexibility, capital allocation, and long-term growth.

Private banks generally have greater flexibility in choosing customer segments, expanding into profitable businesses, and allocating capital based on commercial priorities. SBI also operates commercially, but its public sector ownership and nationwide banking responsibilities can influence its business decisions.

However, SBI's ownership structure also comes with important strengths.

The bank has an extensive branch network, a large customer base, and one of the biggest deposit franchises in India. In September 2026, SBI held approximately ₹62.78 lakh crore in deposits, compared with ₹20.50 lakh crore for ICICI Bank.

This scale provides SBI with a strong funding base and access to customers across the country.

Therefore, government ownership alone cannot explain SBI's lower valuation. Differences in profitability, business efficiency, and future growth expectations also play a role.

Can SBI's Valuation Gap With Private Banks Narrow?

SBI's financial performance has improved significantly, with strong loan growth, declining bad loans, and rising profits.

However, private banks continue to generate higher returns on assets and maintain stronger interest margins.

For SBI's valuation discount to narrow sustainably, the bank would likely need to demonstrate consistent improvement in recurring profitability while maintaining its asset quality.

Higher profitability could encourage investors to assign a greater valuation to SBI's book value.

However, the valuation gap may persist if private banks continue generating stronger returns from their assets.

It is also important to understand that a narrowing valuation gap does not necessarily mean SBI shares must rise. The difference could also reduce if private bank valuations decline.

Author's Take

SBI's lower valuation presents an interesting contrast. The bank has improved its financial performance, reduced bad loans, and continued expanding its lending business. Yet it trades at a P/B ratio of just 1.47, compared with 2.95 for ICICI Bank and 2.07 for HDFC Bank.

Part of this discount can be explained by the profitability gap. Private banks like ICICI Bank generate higher returns on assets and maintain stronger interest margins, which can justify higher valuations.

However, SBI's improving asset quality and growing lending business suggest that its financial position has strengthened considerably.

For investors, the key question is not simply whether SBI is cheaper than private banks. It is whether SBI can consistently improve its core profitability enough to justify a higher valuation over time.