Phase Space AI

Trade Construction

Lam Research [LRCX]

Lam Research [LRCX] — Trade Construction

As of 2026-07-29 · framework v1.5.1 · spot $269.51

Vehicle: EQUITY (ladder step 1 — default, no argument required)

criteria.md requires four disclosures on every name whatever the vehicle.

1. Chosen vehicle and ladder position. Equity. Step 1. No step above equity is argued, therefore the vehicle is equity.

2. Implied volatility minus trailing realised volatility — measured.

Source: Alpaca daily adjusted closes (252 sessions to 2026-07-29) and the v1beta1/options/snapshots Greeks/IV feed on the 17-Jun-2027 chain.

3. Quoted size at the specific strike (not chain-level open interest):

Spreads here are the tightest in the cluster (~3% on the mid at the $260 strike), but quoted size is the thinnest — 8 × 9 at the $270 strike nearest spot. Depth of quote, not depth of open interest, is the test, and 8 contracts is not a vehicle for a real position.

4. Argument for a step above equity: NONE MADE, therefore equity. A LEAP would pay 6.0 points of implied-over-realised premium for one to two years running, on a name whose own valuation section concludes the multiple — not the earnings — is the problem. Convexity is worth paying for when the payoff is a re-rating; here the analysis says the re-rating risk is to the downside. Note also the quoted spread above: the bid/ask at the strike is wide enough that a round trip costs a material fraction of the premium before any thesis plays out.

Position and sizing

The memo issues no position verdict — portfolio-book decides whether and how much. What the memo supplies as sizing inputs:

• Valuation Criteria: FAIL at -23.3pp. On a long-only absolute-return book this is a BINDING failure.
• Evidence grade B → per rule 5, uncertainty reduces position size, never the operating assumption.
• Realised volatility 60.6% → inverse-volatility sizing scales this down hard; the whole cluster sits at 58–61% realised vol, so any WFE exposure is small by construction.
• Correlation warning for the book: KLAC, LRCX and AMAT are one bet, not three. They share the WFE end-market, the memory-capex driver, the China policy risk, and — as §2 of the valuation shows — a common 39.5–40.9x EV/EBIT multiple with no dispersion. Treat the cluster as a single exposure line, and note it also correlates with the existing MU and SNDK work in this book.

Entry / exit, if the book ever wants the exposure

• Entry: would require the multiple back inside the own-history interquartile range (p25–p75 = 11.4x–22.1x TTM P/E, versus 43.4x today), or evidence that backlog coverage has turned up.
• Invalidation: DSO in the September-2026 quarter. Retracing toward 60 days confirms the benign reading; holding above 72 days or rising confirms the adverse one. This is the cluster's cleanest dated falsification test.
• Thesis horizon: the implied-path test is 5-year; the 12-month target is a separate instrument. Any vehicle shorter than 5 years would need a catalyst before expiry — which is a second reason the vehicle is equity.