• JPYC volume on Upbit reached about 300 billion won, passing XRP's 123.9 billion won.
• JPYC listed on Upbit one day before the volume flip and briefly spiked to 37 won.
• JPYC price fell roughly 75% to 8.96 won after its day-one spike.
Korean Spot Volume Flip
A day-old yen stablecoin has achieved what months of ordinary market churn could not: pushing XRP (XRP) out of the top volume slot on South Korea's largest crypto exchange. Upbit order-flow data as of 10:30 a.m. Korea time on Thursday showed cumulative volume for JPYC, a stablecoin pegged to the Japanese yen, at roughly 300 billion won — comfortably ahead of the approximately 123.9 billion won registered by XRP, the XRP (XRP) cross-border settlement asset that Korean retail traders have long treated as their default altcoin market holding. The flip is striking precisely because XRP has held that perch for years; even amid heavy altcoin rotation, few domestic listings have matched the turnover the token generates on a routine session. JPYC began trading on Upbit only the previous day, and the debut quickly turned into a spectacle. With circulating supply constrained at launch, sell-side depth was thin, and the token briefly spiked to 37 won on day one before sliding roughly 75% to around 8.96 won by Thursday morning. For an instrument built to mirror the yen, that range is extraordinary, but the swing reads as a classic listing squeeze rather than a break of the peg itself, with the price settling back toward levels consistent with its reference currency. The volume surge carries the hallmarks of FOMO-driven buying: JPYC is a privately issued token rather than a central bank digital currency (CBDC), and the speculative interest reflects curiosity about a fresh listing rather than any structural shift in underlying yen demand. Readers tracking the token's standing can follow our XRP coverage hub as the rankings settle over coming sessions.
Deribit Book Leans to Calls
Spot rotation on one exchange tells only part of the story. Derivatives open-interest data from Deribit, the largest crypto options venue, as of 02:40 UTC on Thursday put XRP open interest at 3,681 contracts worth about $4.81 million — a fraction of Ethereum's 147,471 contracts (about $370.22 million) and Solana's 7,927 (about $8.12 million) at the same snapshot, but with a clearer directional tilt. The open-interest put/call ratio stood at 0.66, below the 0.70 mark that typically signals call-heavy positioning, sitting between Ethereum's 0.49 and Solana's more defensive 0.82. Over the trailing 24 hours, 3,758 XRP contracts changed hands, with the volume put/call ratio at 0.44 — call demand running well ahead of puts in short-term flow. For scale, Solana's 24-hour volume ran to 10,467 contracts at a ratio of just 0.36, the lowest of the three, against Ethereum's 136,820 contracts at 0.51. The max pain price — the strike at which the greatest number of option buyers would show losses at expiry — sits at $1.32. Below that level, the single largest block of open interest is a $1.20 put, straightforward downside defense, while $1.70 and $1.85 calls rank next, upside bets parked above the pain point. In trading volume, the most-traded contract was the $1.45 call expiring September 19, followed by the $1.34 call at the same expiry, while for October 2 the $1.45, $1.26 and $1.40 calls carried the heaviest flow. XRP spot, meanwhile, changed hands near $1.31, up 0.24% over the prior 24 hours at the snapshot — squarely inside the $1.20-to-$1.45 band where the derivatives book has concentrated its bets. Traders weighing an entry can compare venues in our guide on where and how to buy XRP.
Rotation, Not Retreat
Read together, the two prints describe rotation, not retreat. Korean retail risk appetite is demonstrably intact — it simply found a fresh object in JPYC's debut. The derivatives record, the primary dataset anchoring this piece, shows positioning on XRP itself still leaning constructive, with both the open-interest ratio at 0.66 and the volume ratio at 0.44 below 1 as of Thursday's snapshot. On-chain activity offers supporting context: XRP Ledger transactions jump 23.9% recently as fee burn ticks higher. The backdrop still tempers the optimism — our earlier coverage recorded the two-week RSI at its lowest level in 13 years. Whether $1.45 call demand converts into spot follow-through, or max pain at $1.32 acts as a magnet, is the near-term question.
