Carriba Research
Strategy one-pager · SMH · written 27 Oct 2026, updated 28 Oct before the open with the position live · structure quotes are Monday's close

Buying the semiconductor reversal: one call structure, three reasons

The brief: Anthropic's S-1 has shown profitable, contracted demand for AI compute; SMH is at a technical bottom where the signals have started turning from red to green; buy a call on SMH today for a reversal to about $590, the midpoint between the 52-week high ($671.83) and the 22 October low ($520.53). This page ties the three pieces together and picks the structure. The author's first idea, a 45-day $600 call, is priced alongside: it is the wrong strike for a $590 target, because at the target it has no intrinsic value.

Update, 30 October before the open: closed at $8.75, before the Amazon print. Thursday SMH opened at $558.93, held the $555 cluster to the dollar ($555.50 at the low), bounced to $565.87 and faded through the afternoon as Alphabet fell 12.6%; the call was sold at 14:26 New York at $8.75 with SMH at about $558.40, for +$73 after commissions (+9%) on the $800 premium, two days after entry. The page's rule was a close under $555; going early was the right reading of the evening's risk: Amazon then printed AWS +39% with $75.9 billion of quarterly capex and fell 7%, Intel guided light and fell 26%, and SMH is indicated at $536 (−4.6%), where the call is worth about $5.30–7.30 (at 40–45% implied volatility): the exit kept roughly $150–340 per contract that the stop would have given back this morning. What the trade got right: the entry (the third up day, the scorecard turning, $549), the first two days (+44% at Wednesday's close, the $12 half-off level touched), and the discipline at the level. What it got wrong: the catalyst. The thesis said the Anthropic S-1 had turned AI demand into contracted revenue, and the hyperscalers confirmed exactly that (Alphabet Cloud +103%, AWS +39% with growth above 40% guided for 2027 and 2028); the market priced the cost of delivering it instead, and the chips, which are that cost, were sold with the spenders. A new long needs a close back above $538 and then the $562.8 flip before it is worth paying for; the set-up that would reopen one is the scorecard's, not the calendar's, and the next dated catalysts are AMD on 3 November and Nvidia on 17 November. The trade is recorded in the trade log.

Update, 29 October before the open: the first real test, at the $555 put cluster. Wednesday was the fourth up day: the Fed held (10–2, two dissents for a hike; a December hike is priced at 85%, the ten-year 5.03%), SMH closed $567.67 (+1.7%) with a high of $571.00, and the call closed at $11.50 (+44%), touching the $12 half-off level in the afternoon. Then the evening split the AI trade in two: Microsoft beat with Azure +48% and capex of $45 billion, below its guide, and rose 4%; Alphabet missed, posted −$9.1 billion of free cash flow, kept 2026 capex at $195–205 billion and guided 2027 to a "significant increase" (above $300 billion), and fell 10%. The market read Alphabet as the S-1's bear case written by a hyperscaler, costs scaling with revenue, and the chips followed pre-market: Marvell −10% (Lumentum deal talks), Micron and Intel −4%, AMD −3%, Broadcom −3%, Nasdaq futures −1.2%; SMH is indicated at $556.40 (−2.0%), on the $555 cluster. Wednesday's open interest made that strike the largest in the book (187 million dollars of put gamma, net −158), with the flip at $564.7 above it and the call strikes at $560–625 unchanged: above $555 the book dampens, below it dealers sell. At $556 the call is worth about $8.00, back to cost; the double from here needs $581 today, $586 by 3 November, $594 by 10 November. The decision is the close. A close under $555 is the stop (sell the call, about $7–7.50); a hold of $555 into Amazon and Meta tonight (AWS consensus +35–40%, the $496 billion backlog, the $220 billion capex year) keeps the trade alive, and Amazon's number is the one that can put the chips back on the front foot before AMD on 3 November and Nvidia on 17 November. If half was sold at $12 on Wednesday, the remainder is a free option on tonight.

Update, 28 October 09:50 New York, with Tuesday's open interest. SMH opened at $564.10 (+1.1%) on the FOMC day, exactly on the dealers' flip ($564.3), and the book is positive for the first time since 12 October (+$21 million per 1% in total, +$83 million in the next 35 days): the $555 put cluster is unchanged below the price and calls were added on Tuesday at $570, $580, $600 and the $625 wall. The scorecard reads seven of ten on Tuesday's close: confirmed. The 27 Nov $600 call is marked about $10.10 (+$210, +26%); the double still needs about $580 today, $587 by 4 November. What positive gamma changes for this position: above $555 the hedging now dampens moves and pins the stock near the big call strikes ($570, $580, $600), so the move to $590 has to come from the news (FOMC at 2 p.m., Microsoft and Alphabet tonight, Amazon and Meta on Thursday) rather than from the hedging flow that carried the first three days. The rules stand: half off at $12 now that SMH holds the flip, the rest at $16 on a $590 touch; stop on a close under $555 (raised from $530, since the floor the dealers defend has moved up with the open interest); out by 20 November unless above $600.

Update, 28 October before the open: the position is on, and the first day went its way. SMH closed Tuesday at $557.98 (+3.0%), every holding up, the third up day; the scorecard is six of ten and the dealer book is nearly flat (−$50 million per 1%, flip $561.7, the $555 cluster now below the price, net call gamma from $560 to the $625 wall). The author bought the SMH 27 Nov $600 call at $8.00 at 09:45 on Tuesday, the strike this page argued against for a $590 target, in the weekly that expires a week after the Anthropic debut; it is marked about $8.70 and has its own page under open trades. What that strike needs, at today's volatility: SMH at about $580 today, $587 by 4 November, $595 by 11 November, $604 by 18 November, $616 at expiry to double; the model gives the double a coin-flip chance (51%, median six days) with the stock 1% higher overnight. The rules for it: sell at $16 on the first touch of $590, or half at $12 once SMH holds above the $562 flip; stop on a close under $530; out by 20 November unless SMH is above $600. Today's FOMC (2 p.m.) and Microsoft and Alphabet (after the close) are the first test; Amazon and Meta on Thursday the second.

Pre-open update, 27 October 14:30 CET, with Monday's final open interest. The final figures revised the preliminary chain by +6.5% (1,438 contracts changed): the additions are tail protection far from the price (30 Oct $380 and $420 puts, 6 Nov $500 puts), the $530 wall thinned from 48,400 to 43,100 puts, and call open interest grew at $550–560 (about 5,000 contracts of November and January calls). Net dealer gamma is now −$212 million per 1% (−$339 million on the preliminary), the flip $562.5, and the largest single put strike is now $555 (ahead of $530 and $500), with net call gamma from $560 up. SMH is indicated at $548.80 (+1.3%) pre-market, inside the $550–555 cluster: the hedging flow turns in the position's favour a few dollars higher, not at the open. What the gap does to the structures (estimated from Monday's implied volatilities): the Dec 18 $550/$590 spread about $16.80 (break-even $566.80, 2.4× at $590 but only 1.4× on the maximum), the Nov 20 $560/$590 about $10.20 (break-even $570.20, 2.0×), the Dec 18 $560/$600 about $14.50 (break-even $574.50, 2.1× at $590, 2.8× at $600), the Dec 18 $560/$625 about $19.50 (2.3×). The recommendation stands with one change to the entry: do not buy the gap in the first minutes; buy if SMH holds above $545 (the first call gamma) through the first 30 minutes, and if it has already run through $555 by then, use the $560/$600 instead of the $550/$590, because the long strike should sit on the cluster, not above it. Stop and add levels unchanged ($530 close; $555 close). The scorecard is unchanged at 5 of 10.

1. Demand is real

The S-1 shows $16.3 billion of first-half revenue, a $974 million operating profit in the June quarter, positive operating cash flow, and take-or-pay compute contracts into the 2030s for Google, Amazon, Microsoft, Broadcom and AMD (floors of $417–637 billion). Every chip in it is made at TSMC and every accelerator carries memory. That is a demand confirmation for roughly a third of SMH by weight. It is also a slow catalyst with a dated end: after the 19–20 November debut the IPO becomes stock supply.

2. The bottom is forming

SMH fell 22% from the 6 October high, broke its $536–540 shelf on 22 October on capitulation volume, and on Monday closed back above it at $541.62 (+2.7%) with 96% of holdings up and the laggards leading. The reversal scorecard went from 1 to 5 of 10 in one session: shelf reclaimed, oscillator at zero and rising, participation, no new 52-week lows, Lam and Applied holding their lows. Still red: the candle, Nvidia and TSMC under their 50-days, memory flat on the week, dealer gamma.

3. The dealers' map says where

With Monday's final open interest: put wall $530 (Monday's low to the dollar), the largest put strike now at $555 with $550 beside it (last week's protection), net call gamma from $560 up, the flip at $562.5, the call wall at $625 (58,600 November calls). Below $555 dealers sell rallies; above it they buy them. The long strike belongs on that cluster, the target under the call wall.

The levels

Monday's close $541.62; pre-market indication about $545
LevelPricevs closeWhat it is
Call wall$625+15.4%58,600 November calls; the ceiling of the move, not the target
20-day average$598+10.4%where the October slide started
Target$590+8.9%midpoint of the 52-week high and the 22 Oct low ($596); the 50-day is $578
Gamma flip$564+4.1%above it the whole book is long gamma and pins; below it moves extend
Put cluster / first call gamma$550–555+1.5–2.5%the add trigger: a close above it is where hedging turns from selling rallies to buying them
Shelf (reclaimed Monday)$538−0.7%the $536–540 lows of 15–20 Oct; the failed breakdown needs it to hold
Put wall / stop$530−2.1%Monday's low; a close below it says the low is not in
22 Oct low$520.53−3.9%the capitulation low; below it the next strikes are $500–505

The structures, priced on Monday's close

Per share; one contract is 100. Top line: P&L at expiry. Small line: P&L if SMH is at that price on 20 November (the ANT debut), implied volatility two points lower
StructureCostBreak-evenMax gain$545$560$575$590$600$625
Dec 18 $550/$590 call spread
the trade: capped at the target, long strike on the dealer put cluster
$15.43
$1,543
$565.43
+3.8%
$24.57 (1.6×)-15.43
-1.80
-5.43
+2.47
+9.57
+6.78
+24.57
+10.84
+24.57
+13.28
+24.57
+18.17
Dec 18 $560/$625 call spread
for the overshoot to the call wall
$17.70
$1,770
$577.70
+6.0%
$47.30 (2.7×)-17.70
-4.30
-17.70
+1.27
-2.70
+7.57
+12.30
+14.18
+22.30
+18.55
+47.30
+28.51
Nov 20 $560/$590 call spread
the catalyst window only; expires on the ANT debut
$8.87
$887
$568.87
+4.4%
$21.13 (2.4×)-8.87
-8.87
-8.87
-8.87
+6.13
+6.13
+21.13
+21.13
+21.13
+21.13
+21.13
+21.13
Dec 18 $560/$600 call spread
the compromise: wider than the target
$13.18
$1,318
$573.18
+5.2%
$26.82 (2.0×)-13.18
-2.38
-13.18
+1.63
+1.82
+5.91
+16.82
+10.15
+26.82
+12.81
+26.82
+18.43
Dec 18 $570 call
naked call: break-even is the target
$20.23
$2,023
$590.23
+8.3%
uncapped-20.23
-8.60
-20.23
-2.55
-15.23
+5.15
-0.23
+14.45
+9.77
+21.46
+34.77
+41.33
Dec 18 $600 call (the brief)
the brief: strike above the target, pays only if $590 comes early
$10.82
$1,082
$610.82
+12.1%
uncapped-10.82
-6.50
-10.82
-3.37
-10.82
+1.14
-10.82
+7.22
-10.82
+12.17
+14.18
+27.62

Mid prices of Monday's close (CBOE delayed chain); SMH implied volatility 36–39%, about the 40th percentile of the year, so premium is fair rather than cheap. The 20 November values use Black-Scholes with each leg's own implied volatility less two points for the fall in fear that a rally brings. Spreads are shown at their mid; expect to pay $0.20–0.40 more.

Profit and loss per contract against the SMH price

Solid: at expiry. Dashed: on 20 November with time left (the Nov 20 spread has none). The vertical lines are the stop ($530), the add ($555), the target ($590) and the call wall ($625).

The recommendation and the rules

  1. Buy the SMH 18 Dec 2026 $550/$590 call spread for about $15.45 per share ($1,545 per spread): long the $550 call (~$28.75), short the $590 call (~$13.32). Break-even $565.43 (+3.8%), one dollar above the gamma flip. At or above $590 on 18 December it is worth $40: +$2,457 per spread (+159%, 2.6×); at $575, +$957; at $560, −$543; below $550, the full $1,545. If the target arrives inside the catalyst window (20 November), the spread is worth about $26 (1.7×) and should be sold then, not held for the last $14 through the supply phase. The long strike sits on the $550–555 put cluster, so once the stock is through it the dealers' hedging is on the position's side; the short strike is the target, which is what makes it cheap.
  2. Why not the $600 call? At $590 on expiry it is worth nothing; it only pays if $590 arrives by mid-November (1.7×) and it needs $611 to break even. The Dec $570 naked call breaks even at $590.23, which is the target itself. A call whose strike or break-even is at the target is a bet on an overshoot, not on the target. If you want the overshoot to the call wall, the Dec $560/$625 spread ($17.70, 3.7× at $625, 1.7× at $590) is the honest way to buy it.
  3. The aggressive version: the Nov 20 $560/$590 spread at ~$8.87 pays 3.4× at $590 and expires on the day of the ANT first trade, three days after Nvidia: the whole catalyst window and nothing after it. It is zero below $560 on 20 November, so it is a bet that the reversal happens on schedule. Reasonable as a satellite (say 40% of the premium) next to the December spread, not as the core.
  4. Entry. Today at the open if SMH holds above $538 in the first 30 minutes (the failed breakdown has to hold its first retest); limit at the mid plus $0.20. Add a second unit only on a close above $555, the level where the scorecard's gamma row turns and the hedging flow flips. Do not chase a gap above $555 at the open; wait for the close.
  5. Stop. A close below $530 (the put wall and Monday's low) says the low is not in: sell the spread, which would be worth about $7–8 (−50%). No intraday stops in negative gamma, closes only.
  6. Exit. Sell on the first touch of $590 (about $26–31 for the December spread depending on the date), or on 20 November regardless of price if SMH is below $575, because from the debut through the mid-December Nasdaq-100 fast entry and the lock-up windows the IPO is supply. If SMH is above $575 on 20 November, keep half to expiry for the full $40.
  7. Size. Premium of 1% of the account across both spreads; the SMH shares already in the portfolio carry the beta, so this is the leverage on top of a position, not a new position. One December spread risks $1,545, one November spread $887.

What can go wrong, in order

The catalyst calendar cuts both ways. FOMC and Alphabet and Microsoft on Wednesday, Amazon and Meta on Thursday, AMD around 4 November, Nvidia on 17 November, the Anthropic pricing week of 16 November: the capex guides are what the thesis needs, and a soft one (or a Fed hike, priced at under 15%) would send SMH back to the put wall inside two sessions, because the book is still short gamma below $555. The scorecard is forming, not confirmed. Five of ten; the two that matter most are still red: Nvidia and TSMC under their 50-day averages, and the equipment names 17–24% under theirs after Lam's supply warning. A bounce that the leaders do not join fails at $555–564. The S-1 is a slow catalyst with a dated end. It confirmed demand for the names it contracts; it did not change the Lam supply story or the AI-financing story, and after 20 November a $100 billion primary competes for the same dollars. Implied volatility is fair, not cheap (36–39%), which is why the structures are spreads: a naked call pays for a volatility that would fall on the rally it needs.

Data: Monday 26 Oct 2026 close (Yahoo), CBOE delayed chain with Monday's final open interest (preliminary ~07:00 CET, final ~14:15 CET on 27 Oct; the final revised the preliminary by +6.5%), the SMH health page and the Anthropic S-1 research. Quotes must be re-checked at the open; a 2% gap changes every number above.