What if antitrust forces the breakup of a Big Tech monopoly?
A forced mega-cap breakup is idiosyncratic, not systemic: the clean read is an AI-capex air-pocket hitting Nvidia and the custom-silicon/memory chain (Broadcom, Micron) as hyperscaler spend intentions wobble. The COVID circuit-breaker analogues are mis-fit; the better rhyme is the 1984 AT&T breakup, where the parts ultimately outperformed but the complex de-rated first. Forward angle: a breakup can unlock value over time, so this is a duration/timing trade, not a durable short.
how we built this number — every step
The class rate is measured from our dated, sourced event library (decade-normalized Poisson — the full table is public at base_rates.json). The variant’s share within its class is the analyst’s editorial call, published so you can audit it. A wider range means thinner precedent. Full recipe: methodology · scored at Reality Check.
The butterfly cascade
How this trigger trickles across markets, left → right — the root shock, its first‑order moves, then the ripple effects. Drag any node; tap a market for its real price history.
Resolution timeline — how this probability is moving
Our model's odds (gold) over time vs the crowd's (Polymarket, blue), from the past toward the 3–10 years horizon. Each dot is a real macro event that nudged the probability — green pushed it up, red pushed it down. Tap a dot for the source. The gold path is an illustrative reconstruction anchored to today's estimate — real dated events, not a live re-estimate history.
What it would mean
If this plays out, it is a mixed shock. Antitrust forces the breakup of a top-tech monopoly. The trigger decomposes into signed root‑shocks — AI capex ▼ · Risk appetite ▼ — which propagate through our causal graph to the markets below.
If it happens — the markets it would move
Biggest moves first. Projected moves are cascade-model priors; hist A–B% = what comparable past events actually did (measured abnormal returns), and model prior · unmeasured marks markets with no analogue backing yet. Tap any market for its price history.
| Market | Class | Projected move | |
|---|---|---|---|
| 1 | Nvidia NVDAon Hyperliquid 📈 chart | Equity | ▼ -0.8% hist -0.72–-0.15% · other way +4.3% (n=12) |
| 2 | Broadcom AVGOon Hyperliquid 📈 chart | Equity | ▼ -0.6% hist -1.11–+3.31% · other way +5.72% (n=12) |
| 3 | Micron MUon Hyperliquid 📈 chart | Equity | ▼ -0.5% hist -2.97–+0.74% · other way +2.53% (n=12) |
| 4 | Semiconductors SMHon Hyperliquid 📈 chart | Equity | ▼ -0.4% hist -0.34–+0.36% · other way +2.39% (n=12) |
| 5 | Solana SOLon Hyperliquid 📈 chart | Crypto | ▼ -0.3% hist -15.76–+2.14% · other way -18.52% (n=10) |
| 6 | Hyperliquid (HYPE) HYPEon Hyperliquid | Crypto | ▼ -0.3% model prior · unmeasured |
| 7 | MicroStrategy MSTRon Hyperliquid 📈 chart | Equity | ▼ -0.3% hist -1.58–+0.48% · other way +6.86% (n=12) |
| 8 | Ether ETHon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -10.99–+2.62% · other way -1.38% (n=11) |
| 9 | Nasdaq 100 NDXon Hyperliquid 📈 chart | Index | ▼ -0.2% hist -0.7–+0.1% · other way +0.35% (n=12) |
| 10 | AMD AMDon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -1.69–+0.44% · other way -3.55% (n=12) |
| 11 | TSMC TSMon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -1.58–+0.56% · other way +2.06% (n=12) |
| 12 | Marvell MRVLon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -0.74–+1.73% · other way -0.08% (n=12) |
| 13 | ASML ASMLon Hyperliquid 📈 chart | Equity | ▼ -0.2% hist -1.32–+0.52% · other way +0.45% (n=12) |
| 14 | Bitcoin BTCon Hyperliquid 📈 chart | Crypto | ▼ -0.2% hist -0.52–+0.13% · other way +5.54% (n=12) |
Probable recommendation
Why we may diverge from history
Trust the cascade short on MRVL/AVGO: realized longs lean on the 2020-COVID rebound and carry-unwind snapbacks; an antitrust breakup is an idiosyncratic structural overhang those macro-rescue windows don't proxy.
Historical precedent — what analogous events actually did
Across 36 analogous events (overlap‑weighted), as abnormal returns — market beta stripped, so it's the event's own effect, not the market backdrop. Shown at 20 days (persistent) and 5 days (immediate); ↺ fades = the two horizons disagree. Confidence = consistency × sample × significance.
| Asset | History says | Abnormal (20d · 5d) | Hit | n | Confidence | vs cascade |
|---|---|---|---|---|---|---|
| SOL SOL | SHORT | -12.8% · 5d -4.2% | 100% | 12 | 0.62 | ✓ matches cascade |
| ETH ETH | SHORT | -9.5% · 5d -5.4% | 75% | 17 | 0.41 | ✓ matches cascade |
| AVGO AVGO | LONG | +3.1% · 5d -1.8% ↺ fades | 65% | 30 | 0.26 | ⚠ differs |
| NDX NDX | SHORT | -0.5% · 5d -1.2% | 67% | 35 | 0.26 | ✓ matches cascade |
| AMD AMD | SHORT | -1.4% · 5d -2.2% | 62% | 35 | 0.19 | ✓ matches cascade |
| MU MU | SHORT | -2.5% · 5d -2.0% | 62% | 35 | 0.18 | ✓ matches cascade |
| QCOM QCOM | SHORT | -2.4% · 5d -2.1% | 62% | 33 | 0.18 | ✓ matches cascade |
| Volatility VIX | SHORT | -3.3% · 5d +3.4% ↺ fades | 59% | 33 | 0.18 | · |
| Gold XAU | LONG | +1.2% · 5d -0.1% ↺ fades | 60% | 32 | 0.17 | · |
| SMH SMH | LONG | +0.5% · 5d -0.2% ↺ fades | 60% | 32 | 0.15 | ⚠ differs |
| MRVL MRVL | LONG | +1.7% · 5d +0.8% | 60% | 32 | 0.15 | ⚠ differs |
| NVDA NVDA | SHORT | -0.3% · 5d -2.0% | 58% | 32 | 0.11 | ✓ matches cascade |
| MSTR MSTR | SHORT | -1.3% · 5d -2.5% | 57% | 32 | 0.10 | ✓ matches cascade |
| High-yield credit HYG | LONG | +0.3% · 5d -0.1% ↺ fades | 55% | 31 | 0.09 | · |
Why this probability
Antitrust breakups of big tech are historically rare and slow; 3-10y still low. A base‑rate‑anchored prior, continuously scored against what actually happens — not a forecast.