Three distinct signals have converged on ASX this week. Short interest is rising fast. The cost to borrow has nearly doubled. And options traders are hedging at their most aggressive pace in over a month.
The clearest signal is the cost to borrow. CTB hit 1.09% annually on June 30. That is up 94% in a single week, from 0.56% on June 22. Just two weeks ago it sat at 0.44%.
Availability has tightened alongside it. At 128%, the lending market is still in "tight" territory — roughly 1.3 shares available for every share already borrowed. That is down sharply from 241% on June 22, a 47% contraction in availability in eight days.
The 52-week availability low is 79%, recorded on June 1. The market is not at that extreme yet. But the direction is clear.
Shorts added positions aggressively through the final week of June. Shares short stand at 10.2 million as of June 30, up 16% over the past week and up 25.6% over the past month.
The jump was sharp and sustained. From June 24 to June 25, shares short climbed from 8.98 million to 10.14 million in a single session — the steepest one-day move in the tracked window.
The ORTEX short score sits at 43.1 as of June 29, ticking up from 39.3 a week earlier. That is a moderate but rising level.
The put-call ratio hit 0.22 on June 30. That is 1.79 standard deviations above the 20-day mean of 0.16. It is not at the 52-week high of 0.51, but the trend is pointed upward — the PCR was as low as 0.09 in late May.
Options traders have steadily increased put demand over the past four weeks. The move coincides directly with the acceleration in short interest.
Context matters here. ASX reports earnings on July 10. The stock is up 7% in one day, 13.5% in one week, and 17.7% over the past month. At the last earnings print in late April, it moved +4.4% in one day and +13.6% over five days.
Shorts and options hedgers may be positioning against a stock that has already run hard ahead of a catalyst.
See the live data behind this article on ORTEX.
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