Japan's SBI Holdings is reportedly working on Bitcoin and XRP ETF proposals for the Tokyo Stock Exchange, pending regulatory approval. Separately, Binance flow data over the last 7 days showed XRP withdrawals at 51.5% versus deposits at 48.4%, as XRP traded around $1.37 after pulling back from the $1.50 area.

Solana’s tokenized real-world assets rose 43% quarter over quarter in Q1 2026 to $2.01B, led by Blackrock’s BUIDL and additional growth from PRIME and ONyc. Over the same quarter, “Chain GDP” application revenue stayed nearly flat at $342.2M even as SOL fell 33% and Solana DeFi TVL slipped 22% to $6.16B. Developers are also preparing the Alpenglow upgrade, which targets 150ms finality in 2026.

BNB Chain said a proof-of-concept upgrade to post-quantum cryptography kept BSC operating but cut throughput by roughly 40% on May 19, 2026. Cross-region performance fell from about 4,973 transactions per second to around 2,997, mainly due to much larger transaction payloads and block sizes rather than signature verification delays.

NEAR Protocol (NEAR) was up 11% over the past day at press time, as derivatives positioning and on-chain activity strengthened. Open Interest climbed about 20% in 24 hours to $300 million, including $60 million in newly opened leveraged positions, while spot net inflows totaled $454,000 in the same window. On the network side, holder count reached 11,720 and monthly transactions were reported near 209 million, with 87 million labeled private transactions.

On May 18, Evernorth said the key takeaway from a recent cross-institution blockchain workflow was XRPL coordinating settlement between Ripple, Mastercard, J.P. Morgan’s Kinexys, and Ondo Finance. The firm described Ripple redeeming OUSG on XRPL before the flow passed through Mastercard into Kinexys, with U.S. dollar proceeds reaching Ripple’s Singapore account outside normal banking hours. Evernorth also pointed to filings stating it raised more than $1 billion in gross proceeds tied to a planned Nasdaq listing under ticker XRPN.

BNB Chain completed a live post-quantum migration experiment on BSC, adding ML-DSA-44 signatures and pqSTARK aggregation while keeping wallets, SDKs, RPCs, and address compatibility intact. Under production-like conditions, native transfer throughput fell nearly 40% (4,973 TPS to 2,997 TPS), gas throughput dropped about 50%, and block sizes expanded almost 18x toward ~2 MB, highlighting scalability tradeoffs.

Injective (INJ) bounced after defending $4.5, rallying to $5.4 before pulling back to around $5.01, a daily gain of 8%. Trading volume rose 113% to $169 million alongside a 17% increase in open interest to $103 million, though spot and futures flows point to continued profit-taking and active selling.

CME Group and Nasdaq plan to roll out the Nasdaq CME Crypto Index Futures on June 8, with XRP included in the index basket. The cash-settled, market-cap-weighted contract is designed to provide institutional investors regulated exposure to multiple digital assets through a single futures product.