Singapore equities steadied on Friday after a bruising Thursday session that wiped 195.48 points off the Straits Times Index when DBS, OCBC and UOB sold off in tandem with higher global bond yields.

The STI closed at 5,412.96 on Thursday, down 3.5 per cent, as investors repriced bank earnings expectations amid oil-linked inflation fears and a Federal Reserve that signalled more rate hikes could follow September’s increase. Friday’s session opened with lighter losses as traders digested corporate news elsewhere in the index.

What hit the banks

UOB fell 5.2 per cent to S$40.25, DBS lost 4.7 per cent to S$73.85 and OCBC slipped 4.3 per cent to S$29 on Thursday. Analysts cited profit-taking after a strong year-to-date rally—still up about 17 per cent before the slide—and concerns that funding costs will rise if Treasury yields stay elevated.

DBS senior FX strategist Philip Wee noted that diesel prices have surged to new highs for 2026 even though West Texas Intermediate has not retested April peaks, complicating inflation forecasts across Asia.

Midcaps provide a counterweight

Biosensors International Group rose after partner Shandong Weigao Group Medical Polymer agreed to sell its 50 per cent stake in joint venture JW Medical Systems to Biosensors for US$625.4 million, according to a Hong Kong exchange filing cited by market data services. The deal drew attention away from the financial trio and boosted healthcare hardware names on SGX.

Singapore Exchange Ltd itself slipped about 1 per cent after chief executive Magnus Bocker told a New York conference that partnership strategies in Asia beat chasing blocked cross-border mergers—a reference to SGX’s failed ASX bid years ago.

Broader market breadth

Thursday’s decline saw 438 losers versus 163 gainers on 1.7 billion shares worth S$4.2 billion traded. Real estate investment trusts tied to office and logistics portfolios remain under pressure, with several Mapletree-linked counters touching 52-week lows in Friday screens.

Regional indices followed Wall Street lower: the Hang Seng and Nikkei each fell 1.4 per cent, while the Kospi dropped 2.6 per cent. Singapore’s open economy leaves the STI exposed to the same macro shocks, even when domestic GDP data looks stable.

What retail investors should watch

Bank dividends remain attractive on yield, but short-term price swings can exceed coupon-like expectations. If you hold DBS, OCBC or UOB for income, this week’s move is a reminder that index concentration works both ways: the same banks that powered the STI higher for months can drag it lower in a single session.

Corporate actions like the Biosensors deal show stock-picking still matters within the index. Healthcare hardware and electronics services names can outperform even when financials wobble—relevant as UTAC’s owners explore a potential listing.

Calendar ahead

Next week brings third-quarter bank earnings calls that will test whether Thursday’s sell-off was anticipatory or overdone. Until then, Friday’s stabilisation is less a verdict than a pause: oil still feeds into Singapore’s utility tariffs with a lag, and bond markets remain the tail wagging bank stocks.

Foreign flows and derivatives

Thursday’s turnover stayed below the panic levels seen during pandemic sell-offs, suggesting institutional desks trimmed positions rather than exiting Singapore entirely. Short interest in REITs ticked higher in exchange data, a signal hedge funds may be betting on prolonged office vacancy pain even as banks wobble.

Options expiries next week could amplify swings if bank stocks remain volatile. Retail investors using leveraged counters should note that daily reset products magnify moves in both directions.

Sector rotation ideas

Healthcare hardware, electronics outsourcing and consumer staples historically hold up better than banks when yields rise. Friday’s Biosensors pop fits that pattern, though single-stock risk remains high without index diversification.