ビットゲット、暗号資産業界初となる米国株式オプション取引を開始

Bitget（ビットゲット）が「Stock+」サービスに米国株式オプション（ロングコール／ロングプット）を追加し、暗号資産・金・FX・コモディティに加えて米国株オプションを取引可能にした。買い手のリスクはプレミアムに限定される一方、オプションは不発なら満期で無価値となり得る。過去に米国オプション市場で152億契約超（2025年、平均約6000万契約/日）という需要増を背景に、マルチアセット統合を進める方針で、初期リリースでは米国株式オプションの初取引完了者にNVIDIA株相当$15（約2400円）のキャンペーンを実施する。

Analysis

The main beneficiary is the venue, not NVDA’s fundamentals. Opening U.S. equity options inside a crypto app should increase monetization per user if it converts dormant spot traders into higher-frequency derivatives traders, but that’s a flow story, not an earnings story for NVIDIA. The second-order effect is microstructure: more offshore retail access to single-name optionality tends to concentrate activity in the most liquid, narrative-heavy names, which can keep realized volatility and upside skew elevated around megacap tech.

For NVDA, the near-term implication is incremental call demand from a new audience, which can reinforce momentum and dealer hedging around catalysts. But because the product set is initially limited and single-leg only, this is more likely to generate speculative lottery-ticket flow than deep hedging demand, so the signal is mostly about short-dated gamma, not long-horizon valuation. If adoption is meaningful, expect the effect to show up first in 0DTE/1-4 week tenor IV rather than in sustained multiple expansion.

The contrarian view is that this is mostly promotional distribution dressed up as structural innovation. Unless Bitget can prove sustained volumes, NVDA exposure from this channel is likely too small to move the stock beyond a modest volatility premium. The thesis is falsified if there is no visible uptick in NVDA option OI/volume on offshore venues or if post-launch implied vol fails to stay bid into the next earnings cycle; conversely, a regulatory pushback on stock-linked derivatives would cap the flow thesis quickly.

Key Decisions for Investors

• No immediate directional trade in NVDA on this headline alone; treat as a flow watch-item and require evidence of sustained offshore option volume before paying up for upside exposure over the next 2-4 weeks.
• If NVDA 1-2 week implied volatility gets marked up on launch-driven retail demand, consider selling upside call spreads into strength rather than chasing outright long calls; risk/reward favors harvesting skew if spot does not accelerate immediately.
• Pair idea: long high-beta AI cash-flow beneficiaries with cleaner fundamental catalysts over short-vol names; if this channel increases retail call demand, NVDA may outperform tactically, but the cleaner expression is to stay long the semiconductor basket via SMH and avoid overpaying for single-name gamma.
• Set an alert for NVDA short-dated IV and call volume around the next earnings date; if IV rises without a corresponding revision to guidance or estimates, fade the move with defined-risk premium selling.
• Watch for any jurisdictional restrictions or compliance issues at Bitget; if regulators step in, the flow thesis reverses fast and the market impact on NVDA should disappear within days rather than months.