MUFG Bulls Hold the Field as Borrow Dries Up Further

MUFG arrives at its August 3 earnings report with options positioning still near its most bullish extreme of the past year — and a borrow market that has tightened further since last week's coverage.

The options picture has barely shifted from last week's extreme. The put/call ratio ticked up to 0.072 on July 30, still near the 52-week low of 0.063 and running almost 1.5 standard deviations below the 20-day average of 0.50. That remains roughly one put for every fourteen calls — a market dominated by call buyers rather than hedgers. Price action reinforces the bullish lean: MUFG closed at $22.50, up 2.6% on the day, though it has given back half a percent on the week after the strong month-prior rally of 12.6%.

The borrow market has tightened since the July 27 article flagged availability near 5.1%. It has now edged down further to 4.2% — fewer than five shares remain available for every hundred already lent out, a drop of 62% over the past week. The 52-week low sits at 0.29%, so there is still room to tighten, but the direction is clear. Cost to borrow has actually eased sharply, falling 29% on the week to 0.71% — suggesting the squeeze risk is more about availability than price pressure. Short interest itself remains a sideshow: roughly 7 million shares borrowed, down 17% over the past month, with no float percentage available for this ADR-listed Japanese megabank.

Institutional ownership is stable and broadly supportive. BlackRock holds 7.7% of shares and added modestly in the most recent period. JP Morgan Asset Management added 5.4 million shares as of June 30. The top-15 holder list is anchored by a mix of domestic Japanese asset managers and global passive players — a structure that tends to dampen volatility rather than amplify it. Analyst data is too stale to carry meaningful weight here; the most recent consensus information predates current market conditions by years.

The August 3 print will therefore test whether the bullish options positioning and the month-long price rally reflect genuine fundamental momentum — or simply optimism that the tightening borrow market and BoJ policy normalisation story has further to run.