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📈 Mag-7 concentration unwinds — trillions in drawdown

Top-7/8 concentration approaching 40% of the indices historically foreshadows a big drawdown; independent of fundamentals, even a 10% Mag-8 retrace is trillions of dollars. Super prediction: Mag-8 share of S&P falls below 30%.

0 CONVICTION
peaked 62.3 WATCH
DORMANT
band · contested
▼ SHORT MAGS
expression · bearish equities
MISS
outcome · R -17.0% · α -33.1%
2026-01-04
window closed

⚖ Why this verdict

fully deterministic — evaluate.py replays this from daily closes; nothing below is editable or hand-set

  1. Window: 2025-01-04 → 2026-01-04 — first mention + 12-month horizon, then the window locks.
  2. The call: ▼ SHORT MAGS (primary play). MAGS rose 17.0% over the window → direction-adjusted R = -17.0% (the call lost money).
  3. Benchmark: holding SPY over the same window returned +16.1%α = -17.0 − (+16.1) = -33.1% — what this call made or lost against just owning the index. This is the number the verdict uses.
    Stock-selection read: -0.9% — did MAGS move the predicted way relative to the market. The two only differ on a SHORT: this call was right about direction relative to the index but still cost money versus holding it.
  4. Rule fired:
    · HIT — R ≥ +10% AND α ≥ +5
    · PARTIAL — R ≥ +5% OR α ≥ 0
    ▶ MISS — everything else
  5. Credit: supporters of a MISS earn 0 each, opposers the inverse — this feeds the scoreboard weights. supported: Chamath | opposed: Brad Gerstner, Friedberg, Jason

Conviction timeline

bands: green ≥ 65 · watch ≥ 45 · ember ≥ 15

Plays vs SPY · % since first mention (2025-01-04)

Plays

expressionsymbolkindrelevancerationale
▼ SHORT MAGSetf PRIMARY Magnificent Seven ETF — the exact basket

Mention log

Chamath
Chamath equities w=0.84 · n=160 · E209 (2025-01-04) · annual_prediction · strength 2 ▶ 39:53 SUPPORT · horizon 12mo
“The absolute dollar drawdown of the Mag-7 will be in the trillions of dollars... concentration of the top seven, eight companies in the indices is approaching 40 percent... these historic concentrations have generally foreshadowed a big drawdown. [Super prediction: Mag-8 representation on the S&P 500 shrinks below 30%.]”
Jason
Jason equities w=0.97 · n=105 · E209 (2025-01-04) · annual_prediction · strength 2 ▶ 1:22:10 OPPOSE · horizon 12mo
“I think the Mag 7 is going to be the best performing asset. I'm taking the other side... the internal application of AI will allow these companies to have earnings growth that people will not be able to comprehend over the next couple of years.”
Chamath
Chamath equities w=0.84 · n=160 · E217 (2025-03-01) · explicit_prediction · strength 3 ▶ 31:56 SUPPORT
“Now, if you go to the other chart, what this starts to show you though, is that MAG-7 is really priced to perfection. And so you have to believe that the world kind of stays the way that it is. Otherwise, you're going to have some amount of mean reversion. So I think the stock market on the margin is a little expensive and not particularly that attractive.”
Chamath
Chamath equities w=0.84 · n=160 · E218 (2025-03-08) · sentiment · strength 2 ▶ 7:16 SUPPORT
“And then the markets have just been going, I think, the craziest I've actually seen in 20 years of following the markets. And specifically, you're seeing the Mag-7 compressed towards the rest of the S&P 500”
Chamath
Chamath equities w=0.84 · n=160 · E219 (2025-03-15) · explicit_prediction · strength 3 ▶ 36:18 SUPPORT
“I think we've started the process of really, really taking a bunch of heat out of the asset markets, like equities. So we've taken trillions and trillions of dollars of wealth away. I think we're going to take trillions more.”
Chamath
Chamath equities w=0.84 · n=160 · E222 (2025-04-05) · explicit_prediction · strength 3 ▶ 50:24 SUPPORT
“This was free money. This was like the stock market giving up free money. But why did this happen? This happened because it was very clear to me early on that the rhetoric had shifted to say, we care about MAGA, we care about people that have working class and middle class jobs. None of those folks are deeply invested in the asset economy the way maybe some of us are.”
Chamath
Chamath equities w=0.84 · n=160 · E223 (2025-04-11) · explicit_prediction · strength 2 ▶ 14:57 SUPPORT
“we have allowed the stock market to inflate past historical averages. What we have actually seen happen in the last week is what most people would call mean reversion. The stock market is still way above where it was last year, two years ago, three years ago. What has happened is that the forward multiples have compressed.”
PH
Philippe Laffont (guest ×0.5) no equities track record · E227 (2025-05-09) · explicit_prediction · strength 2 ▶ 41:45 SUPPORT
“To me, it's a little bit like the end of the Max 7 And what we should do is almost think like, hey, what is the next? Remember when the Max 7 used to be Fang and then Fang++, and nobody talks about Fang anymore.”
Chamath
Chamath equities w=0.84 · n=160 · E227 (2025-05-09) · explicit_prediction · strength 2 ▶ 1:29:19 SUPPORT
“The MAG-7 was this set of correlated seven companies that sucked up all the attention, all the money, they moved in unison dollar for dollar. Now that that correlation has broken down, it allows you to ask this question, which is, what is the real MAG-X companies?”
Friedberg
Friedberg equities w=0.87 · n=120 · E233 (2025-06-28) · sentiment · strength 2 ▶ 1:19:51 OPPOSE
“As we talked about last week, the S&P 493 are really struggling relative to the MAG 7 And there's a really kind of questionable outlook ahead for the vast majority of equity cap out there.”
Brad Gerstner
Brad Gerstner (regular guest ×1.0) equities w=0.95 · n=22 · E246 (2025-10-10) · explicit_prediction · strength 2 ▶ 56:59 OPPOSE
“Everybody's looking for the bubble... The reality today is NVIDIA trades at a lower price to earnings multiple than it did when it was $200 a share... There is not a dark GPU in the world today.”

Who built this conviction

each voice's total force on the score — supports and opposes from every mention, weighted exactly as the replay applied them · share = % of all mention-driven movement

Chamath
Chamath w=0.84
7 scoring events · 68% of moves
+84.3 → net +84.3
Jason
Jason w=0.97
1 scoring event · 9% of moves
+0.0 / -11.7 → net -11.7
Brad Gerstner
Brad Gerstner w=0.95 regular guest ×1.0
1 scoring event · 9% of moves
+0.0 / -11.5 → net -11.5
Friedberg
Friedberg w=0.87
1 scoring event · 8% of moves
+0.0 / -10.4 → net -10.4
PH
Philippe Laffont guest ×0.5
1 scoring event · 4% of moves
+5.5 → net +5.5

⏳ decay drained -46.6 over the idea's life — that's time passing, attributed to no one

Score events

episodekindΔafternote
E209 2025-01-04 init +33.5 33.5 E209 born by Chamath (annual_prediction x2) [w=0.84]
E209 2025-01-04 oppose -11.7 21.8 E209 Jason opposes x2 [w=0.97]
E210 2025-01-11 decay -0.9 21.0 E210 silent
E211 2025-01-18 decay -0.8 20.1 E211 silent
E212 2025-01-25 decay -0.8 19.3 E212 silent
E213 2025-01-31 decay -0.8 18.6 E213 silent
E214 2025-02-07 decay -0.7 17.8 E214 silent
E215 2025-02-15 decay -0.7 17.1 E215 silent
E216 2025-02-21 decay -0.7 16.4 E216 silent
E217 2025-03-01 reinforce +12.6 29.0 E217 Chamath support x3 [w=0.84]
E218 2025-03-08 reinforce +8.9 37.9 E218 Chamath support x2 [w=0.84]
E219 2025-03-15 reinforce +9.4 47.3 E219 Chamath support x3 [w=0.84]
E220 2025-03-22 decay -1.9 45.4 E220 silent
E221 2025-03-29 decay -1.8 43.6 E221 silent
E222 2025-04-05 reinforce +8.5 52.1 E222 Chamath support x3 [w=0.84]
E223 2025-04-11 reinforce +6.0 58.1 E223 Chamath support x2 [w=0.84]
E224 2025-04-19 decay -2.3 55.8 E224 silent
E225 2025-04-26 decay -2.2 53.6 E225 silent
E226 2025-05-02 decay -2.1 51.4 E226 silent
E227 2025-05-09 reinforce +5.5 56.9 E227 Philippe Laffont support x2 (new voice) [w=0.50]
E227 2025-05-09 reinforce +5.4 62.3 E227 Chamath support x2 [w=0.84]
E228 2025-05-17 decay -2.5 59.8 E228 silent
E229 2025-05-24 decay -2.4 57.4 E229 silent
E231 2025-06-13 decay -2.3 55.1 E231 silent
E232 2025-06-21 decay -2.2 52.9 E232 silent
E233 2025-06-28 oppose -10.4 42.5 E233 Friedberg opposes x2 [w=0.87]
E234 2025-07-04 decay -1.7 40.8 E234 silent
E235 2025-07-11 decay -1.6 39.2 E235 silent
E236 2025-07-19 decay -1.6 37.6 E236 silent
E237 2025-08-01 decay -1.5 36.1 E237 silent
E238 2025-08-09 decay -1.4 34.7 E238 silent
E239 2025-08-15 decay -1.4 33.3 E239 silent
E240 2025-08-22 decay -1.3 31.9 E240 silent
E241 2025-08-29 decay -1.3 30.7 E241 silent
E242 2025-09-07 decay -1.2 29.4 E242 silent
E243 2025-09-19 decay -1.2 28.3 E243 silent
E244 2025-09-27 decay -1.1 27.1 E244 silent
E245 2025-10-03 decay -1.1 26.0 E245 silent
E246 2025-10-10 oppose -11.5 14.6 E246 Brad Gerstner opposes x2 [w=0.95]
E247 2025-10-17 decay -0.6 14.0 E247 silent
E248 2025-10-24 decay -0.6 13.4 E248 silent
E249 2025-10-31 decay -0.5 12.9 E249 silent
E250 2025-11-07 decay -0.5 12.4 E250 silent
E251 2025-11-14 decay -0.5 11.9 E251 silent
E252 2025-11-22 decay -0.5 11.4 E252 silent
E253 2025-12-06 decay -0.5 11.0 E253 silent
E254 2025-12-13 decay -0.4 10.5 E254 silent
E255 2025-12-19 decay -0.4 10.1 E255 silent
E256 2025-12-31 decay -0.4 9.7 E256 silent