Reward 1000 Tiger-coinsHi Tigers 🐯, Welcome to "What the Tigers say." 👋
Big-bank earnings season kicks off on October 13 with $JPMorgan Chase(JPM)$ $Goldman Sachs(GS)$ $Wells Fargo(WFC)$ and $Citigroup(C)$ reporting third-quarter results, and the community spent the run-up debating what actually holds bank valuations up: headline profits, net interest margins, or tangible book value. With rates volatile and $Berkshire Hathaway(BRK.B)$ still trimming $Bank of America(BAC)$ into the print, positioning ahead of the banks became this week's shared question.
Before today's session played out, the community was already doing the heavy lifting. Let's rewind to the three sharpest takes from @D1ane , @nerdbull1669 , and @JC888 :
D1ane | 🏦 BIG BANK EARNINGS: FOLLOW THE PROFITS, BUT WATCH THE LOSSES. @D1ane
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Season Starts October 13: $$JPMorgan Chase(JPM$$, $$Goldman Sachs(GS$$, $$Wells Fargo(WFC$$ and $$Citigroup(C$$ report third-quarter results on October 13, kicking off earnings season with a critical test of whether big banks can sustain profits amid economic uncertainty.
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Profits After Losses: The number that matters beyond headline profit is how much of it survives after credit losses and rising costs are accounted for.
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No Guaranteed Win: Higher rates aren't an automatic win — net interest income improves only when lending rates rise faster than deposit and funding costs.
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Margins Aren't Automatic: Banks earn interest on loans and investments while paying interest on deposits and other funding, so the spread between the two — not the rate level itself — decides whether margins expand.
nerdbull1669 | Beyond Net Interest Margins: What Truly Drives Major Bank Valuations in Volatile Rate Environments @nerdbull1669
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NIM Isn't Enough: Relying on Net Interest Margin as a sole valuation proxy fails in late-cycle environments because it ignores credit provisions, operating expenses, fee revenue, and balance sheet capital destruction.
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Backward-Looking Metric: NIM reflects accounting yield rather than economic value, so a bank can show temporarily expanded margins while accumulating severe mark-to-market losses on its fixed-income portfolio.
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Yields Cut Both Ways: Rising benchmark Treasury yields support asset yields on new loans but simultaneously create severe paper losses on existing fixed-rate securities held on bank balance sheets.
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AOCI Erodes Capital: Available-for-Sale securities are marked to market through Accumulated Other Comprehensive Income, and as regulators fold AOCI into capital metrics, elevated long-term yields directly erode TCE, TBVPS, and price-to-book multiples.
JC888 | BAC, a Buy amidst Selloff, Q3 & Fines ? @JC888
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Buffett's Largest Trim: $$Berkshire Hathaway(BRK.B$$'s Q2 2026 13F showed a sale of about 30.2 million $$Bank of America(BAC$$ shares, a -5.9% reduction worth roughly $1.7 billion at quarter-end prices — its largest dollar reduction of the quarter.
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Stake Cut In Half: BRK.B owned just over 1.03 billion BAC shares in mid-2024 and has reduced its position every quarter since, holding just 483.4 million shares by the end of June 2026 — less than half the earlier position.
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Discipline Continues Under Abel: Under new CEO Greg Abel, the continued reduction of BAC extends the disciplined selling approach originally set by Warren Buffett.
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Conspicuous Pre-Earnings Exit: The ongoing BAC trim is Berkshire's most conspicuous portfolio decision heading into Bank of America's Q3 2026 earnings report.
Three Tigers, three angles — @D1ane warns that headline profits mean little until credit losses and rising costs are netted out, @nerdbull1669 argues NIM is a backward-looking mirage and tracks AOCI's erosion of tangible book value, and @jc888 reads Berkshire's $1.7 billion BAC trim as the loudest positioning signal into the Q3 prints. Together, they frame the bank trade as less about rates and more about what survives beneath the surface.
What's your take? Which of these three reads best matches your view — and what would change your mind? Drop your thoughts in the comments and tag another Tiger who should weigh in. 🐯
🎁 Special Notes: Whoever showed up on the "What the Tigers Say" column will receive 100 Tiger Coins! See you next week!
Comments
我认为，净息差只是判断银行盈利的其中一个指标，还要关注信贷损失、运营成本、资本充足率和有形账面价值。利率上升可能增加贷款收入，却也可能造成债券账面亏损、存款成本上升。
至于伯克希尔持续减持美国银行，值得参考，但不能直接当成卖出信号。大型投资机构有自己的资金安排和投资考量，不一定适合散户照搬。
我的保守策略是：先看资产质量和长期盈利能力，再看估值是否合理。 如果坏账增加、资本受压，即使市盈率很低，我也不会急着抄底。对银行股来说，稳定赚钱比短期利润亮眼更重要。
Big-bank earnings are not simply a bet on interest rates. The real question is whether profits translate into sustainable value.
Higher rates boost loan yields but increase deposit costs, pressure bond portfolios, and weaken borrowers’ ability to repay. Banks can report healthy income while accumulating hidden risks.
That is why tangible book value and credit-loss provisions matter. NIM measures interest profitability; tangible book value reveals what remains for shareholders.
Berkshire’s continued BAC selling deserves attention, but it does not automatically signal a bearish verdict. Great investors rebalance for reasons beyond a company’s outlook.
My conclusion: I would rather own a bank with resilient credit quality, disciplined capital allocation, and sustainable returns than one benefiting from favorable rates.
@WallStreet_Tiger [思考]
I also find @nerdbull1669 ’s point about tangible book value important, especially when Treasury yields remain elevated. A bank may report solid profits, but hidden balance-sheet pressure and unrealised losses can still affect its long-term valuation.
As for Berkshire trimming $Bank of America(BAC)$ , I would treat it as a signal worth monitoring rather than an automatic reason to sell. I prefer to look at the bank’s fundamentals, valuation, and earnings outlook before making a decision. Ultimately, I want to invest in banks that can deliver sustainable earnings through different interest-rate environments, not just benefit from temporarily favourable conditions.
@TigerStars @Tiger_comments @TigerClub @WallStreet_Tiger
高利率环境下，银行可能出现一种表面繁荣：贷款收益率提高，净利息收入增长，但存款成本、潜在坏账以及债券投资组合的未实现损失也在增加。
**我尤其关注三个指标：**
① **ROTCE：** 银行每使用一单位有形股东资本，究竟能创造多少利润？如果ROTCE长期低于股权资本成本，即使EPS增长，也很难支撑持续的估值溢价。
② **AOCI与有形账面价值：** 长期美债收益率上升会压低现有固定收益证券价格，可能侵蚀银行有形净资产。不过，不同银行的会计分类及监管资本处理存在差异，不能简单将所有未实现损失等同于实际亏损。
③ **信贷损失准备：** 净息差扩大不代表最终利润一定改善。如果信用卡逾期率、企业贷款违约率持续上升，新增利息收入可能被坏账抵消。
**对于伯克希尔持续减持BAC，我认为值得警惕，但不能直接解读为巴菲特看空整个银行业。** 13F存在披露滞后，减持也可能涉及仓位管理、税务或资本配置。
真正能改变我判断的，是JPM、BAC、WFC等银行连续几个季度同时出现净息差稳定、信贷质量改善，以及ROTCE持续高于资本成本。
**我的核心观点是：银行股长期回报的关键，不是利率越高越好，而是能否在完整经济周期中持续创造超过资本成本的收益。**
相比单季度EPS超预期，我更愿意为稳定的盈利质量和可持续资本回报支付溢价。
Net profit is more important.