Bitcoin’s options market is flashing one of its clearest bullish signals in months. The put/call open interest ratio has dropped to 0.52, according to Glassnode data, a steep fall from the 0.76 reading observed in late June.

In English: for every put option (a bet that price will fall), there are now roughly two call options (bets that price will rise). Traders are ditching their insurance policies and loading up on upside exposure instead.

What the ratio actually tells us

The put/call open interest ratio simply divides the total number of outstanding put contracts by the total number of outstanding call contracts. A ratio below 1.0 means calls outnumber puts. The lower the number goes, the more lopsided the bullish positioning becomes.

The decline didn’t happen overnight, either. In mid-July, the ratio was sitting around 0.56 to 0.59, which at the time already represented a six-month low. The continued slide to 0.52 confirms this isn’t a one-day blip but a sustained trend of bearish unwind.

Bitcoin’s price has been stabilizing near $67K during this period.

The mechanics of the unwind

When traders let put options expire or actively close out bearish positions, it reduces the hedging pressure on market makers. Those market makers, who typically delta-hedge their exposure by selling Bitcoin when they hold puts, suddenly have less reason to sell. The net effect is reduced selling pressure on the underlying asset.

Meanwhile, the growing call open interest works in reverse. Market makers who sell calls typically hedge by buying Bitcoin. More calls mean more hedging demand, which means more buying pressure.

The move from 0.76 to 0.52 in roughly a month represents a meaningful shift in this dynamic. Call open interest has been climbing relative to puts, and that mechanical buying pressure from delta hedging could be providing a quiet tailwind for Bitcoin’s price around $67K.

What this means for investors

A put/call ratio of 0.52 is firmly in bullish territory. Historically, values above 0.7 to 0.8 have correlated with increased defensive sentiment, while lower ratios suggest growing market optimism. The consistent decline from 0.76 to the mid-July readings around 0.56 to 0.59 and now to 0.52 tells a story of gradually increasing confidence.

What to watch from here: if the ratio continues falling toward 0.4 or below while Bitcoin remains range-bound near $67K, it could signal excessive optimism. Conversely, if Bitcoin breaks meaningfully above its current range with the ratio already this low, it would confirm that the options market was correctly positioned ahead of the move.