According to AltcoinGordon, $300k is the most popular Bitcoin call option strike for June, signaling strong bullish sentiment among derivatives traders (source: AltcoinGordon on Twitter, May 24, 2025). This concentration of high-strike options may drive increased volatility and influence spot BTC prices as expiry approaches. Traders should monitor open interest and implied volatility for clues on potential price surges or swings, as heightened call option activity often precedes significant market moves.