Bitcoin dipped below the $80,000 mark on Thursday for the first time this month, sliding as spot ETF outflows hit $630 million and demand for the largest cryptocurrency showed signs of leveling off. The move comes at a time when a familiar mid-month catalyst — the so-called STRC cycle tied to Strategy's stock — is just around the corner, and some traders are betting the dip won't last long.
What pushed BTC under $80k
The sell-off accelerated after Wednesday's close, with Bitcoin touching $79,400 before recovering slightly to trade near $79,800. The trigger appeared to be a sharp reversal in ETF flows: after several weeks of steady inflows, the ten U.S. spot Bitcoin ETFs saw a combined $630 million exit on Wednesday, the largest single-day outflow since mid-April. No single fund accounted for the majority — it was broad-based selling across the board.
May, historically a mixed month for crypto, is living up to its reputation. On-chain metrics show daily active Bitcoin addresses plateauing since the start of the month, and exchange order books for BTC have thinned out, suggesting fewer buyers willing to step in at current levels. The combination of fading demand and ETF outflows is a double whammy that hasn't been seen since January.
The STRC pattern that keeps showing up
Since March, Strategy's stock (ticker: STRC) has become an unlikely rhythm-setter for Bitcoin's mid-month performance. Every month starting in March, a cyclical uptick in STRC trading volume — driven partly by options expiration and partly by recurring institutional rebalancing — has preceded a Bitcoin rally of 8% to 12% between the 12th and the 20th. The pattern held in March, April, and earlier this month, when BTC bounced from $76,500 to $85,000 before fading again.
The next STRC cycle is expected to kick in around May 17–19. If the pattern repeats, Bitcoin could reverse its current slide within days. That's a big if, but the timing is notable — the dip below $80k landed right before the window typically opens.
What happens next
The immediate question is whether the STRC effect is strong enough to overcome the headwinds. ETF outflows of that magnitude usually take a few days to fully digest, and options positioning suggests resistance around $82,000. On the other hand, short-term leverage in the futures market has been washed out, leaving less fuel for a cascade lower.
Strategy itself hasn't commented on the pattern, but the firm continues to hold a sizable Bitcoin treasury. If STRC's volume picks up as expected over the weekend, BTC will have to hold above $78,000 for the pattern to have room to work. The next few trading sessions will show whether the mid-month magic is still intact — or whether May demand has truly gone flat.
