Signing Day Sports Inc（SGN）資訊與事件SGNSigning Day Sports Inc

BlackRock Launches Ethereum Staking Product, $73.5M Bought in 24 Hours

Today's tape is led by an ether conviction trade: BlackRock'snew staking product is drawing institutions into ether. In addition, on-chain trackers are logging more than $73.5M of identifiable ether buying in 24 hours, and a fresh Fortune feature says tokenized stocks built on Ethereum-style infrastructure are approaching a bitcoin-scale disruption moment. Bitcoinis steady but second fiddle, hovering near $73,000 in a macro environment Bloomberg describes as stagflation‑tinged.ETHER, STAKING AND ON-CHAIN FLOWS:BlackRock'sbegan trading on Nasdaq as ETHB on March 12 with about $100M in seed assets and roughly $15.5M–$16M in first‑day volume, a launch Bloomberg Intelligence'sfor a new ETF. The vehicle stakes most of its ether through Coinbase Primeusing third‑party validators, pays investors around 82% of an estimated 3.1% staking yield, layers on a sponsor fee temporarily discounted to 0.12% on the initial asset base, and exposes holders to both validator‑slashing and staking‑queue liquidity risks that now sit alongside IBIT and ETHA in equity models.On-chain,Arkham Intelligencedata showShapeShift founder and Venice AI co‑founder Erik Voorheesspent $49.08M in USDTtoday to buy 23,393 ether at an average of $2,098, lifting his recent accumulation to 24,968 ether worth about $56.5M and leaving one tagged wallet still holding stablecoins and staked ether . A separate Arkham‑based analysis showsIntuition Protocol CEO Billy Luedtkepurchasing 7,769 ether for $17.46M at an average of $2,248; together, those moves create more than $73.5M of clearly attributed ether demand in one day as ether gains roughly 7.4% versus bitcoin's ~3% rise.BITCOIN FLOWS, STRUCTURAL SIGNALS AND LIQUIDATIONS:U.S. spot bitcoin ETFs took in approximately $767M of net inflows in the week through March 13,. BlackRock's fund accounted for about $601M of that, Fidelity's added roughly $148M, Grayscale's converted trust bled about $25.9M, and the complex as a whole now sits near $91.8B in net asset value, or about 6.4% of bitcoin's market cap. Glassnode data, summarized in, show bitcoin's Accumulation Trend Score recently near 0.04 on a 0–1 scale, implying that larger cohorts have been net distributors rather than accumulators, while its newsletter notes only about 57% of BTC supply is in profit, a level associated with prior bear phases, even as ETF and spot flows remain supportive.At the derivatives level,FameEX, citingCoinglass, reports that as bitcoin briefly reclaimed $73,000 and ether pushed above $2,200, roughly $193M of leveraged positions were liquidated across the crypto market, most of them shorts; in one concentrated hour, liquidations totaled about $116M, with $113M of that from shorts, mirroring a classic short squeeze in an over‑borrowed equity.INFRASTRUCTURE AND TREASURY PIVOTS:On the equity side, Signing Day Sportstrades for the last time today before its merger with BlockchAIn LLC transitions the combined company to NYSE American under the ticker AIBat tomorrow's open, per aMarch 16 press release. The target adds a roughly 40‑megawatt South Carolina AI and high‑performance computing data center that earned $22.9M in revenue and $5.7M in net income in 2024, plus a non‑binding LOI with an international private equity firm for a 5‑megawatt, $100M‑plus AI/HPC build‑to‑suit project that could reach about $300M in value with extensions,.Digi Power Xused a March 16 clarification viato stress that its U.S. data centers spinout is strictly a manufacturing and distribution arm for its ARMS modular data centers, while Digi Power X retains all site‑level economics and a 55% stake; it reports roughly $80M in combined cash, bitcoin and ether, no debt or 2026 equity dilution, about 400 MW of secured power across four owned sites, and expects its ARMS200 deployment in Alabama to begin generating revenue in April.Further down the market‑cap spectrum, Bitcoin Depot(BTM),which operates more than 9,000 bitcoin ATMs worldwide, released its Q4 and FY25 figures before the bell and is hosting an earnings call at 10:00 A.M. ET, as flagged in.DEFI STRESS AND TOKENIZED EQUITY PLUMBING:argues that tokenized stocks have reached roughly $2B in value across platforms and are nearing a disruption phase comparable to bitcoin and stablecoins as rails, particularly with NYSE partnering with OKX and Nasdaqwith Kraken on chain‑native equity infrastructure. The piece highlights Securitize, Superstate and Figureas core plumbing providers, points to Coinbase, Robinhood, Kraken and Ondo as likely listed beneficiaries, and quotes Stan Druckenmiller predicting that stablecoins will dominate global payments in about 15 years.PRICE ACTION:As of time of writing, bitcoin was trading at$73,669.85, while ether was trading at$2,286.57,according to price data from TipRanks.

Signing Day Sports and BlockchAIn Ticker Transition After Merger

Signing Day Sports and BlockchAIn Digital Infrastructure provided an update regarding their expected ticker symbol transition and common stock trading schedule in connection with their previously announced business combination, which was approved by the Company's stockholders on March 13, 2026. Upon the closing of the previously announced business combination, expected to occur later today, Signing Day Sports and BlockchAIn LLC will become operating subsidiaries of BlockchAIn Inc. Signing Day Sports common stock is expected to continue trading on the NYSE American under the ticker symbol "SGN" through the close of market on March 16, 2026. BlockchAIn Inc. common stock is anticipated to begin trading on the NYSE American under the ticker symbol "AIB" on March 17, 2026 at 9:30 a.m. EDT, subject to closing of the business combination. The new CUSIP number for BlockchAIn Inc.'s common stock will be 093919108.

Signing Day Sports Shareholders Approve Merger with BlockchAIn

Signing Day Sports announced that its stockholders approved the previously announced proposed business combination with BlockchAIn Digital Infrastructure, Inc, One Blockchain LLC, and certain affiliates of BlockchAIn at the company's Special Meeting of Stockholders. At the closing of the Business Combination, which is expected to occur on March 16, Signing Day Sports and BlockchAIn LLC are expected to become operating subsidiaries of BlockchAIn Inc. On March 17, 2026, the common stock of BlockchAIn Inc. is expected to begin trading on the NYSE American under the ticker symbol "AIB" at 9:30am EDT. The new CUSIP number for BlockchAIn Inc.'s common stock will be 093919108.