← pool

📈 Uninsurable coastal property gets repriced down

Record ocean heat drives more Otis-style events, reinsurance markets harden and pass rate increases through to every property owner. Coastal real estate is only worth its current mark because it is insurable, so as premiums become unaffordable owners are forced to sell and values get written down — a multi-trillion-dollar loss that eventually lands on the federal government.

0 CONVICTION
peaked 50.5 WATCH
WATCH
band
▼ SHORT LEN
expression · bearish equities
MISS
outcome · R -69.1% · α -112.0%
2024-10-27
window closed

also touching these tickers, same direction: LA fire rebuild stalls for years, not months 15 (ITB)

⚖ Why this verdict

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

  1. Window: 2023-10-27 → 2024-10-27 — first mention + 12-month horizon, then the window locks.
  2. The call: ▼ SHORT LEN (primary play). LEN rose 69.1% over the window → direction-adjusted R = -69.1% (the call lost money).
  3. Benchmark: holding SPY over the same window returned +42.9%α = -69.1 − (+42.9) = -112.0% — what this call made or lost against just owning the index. This is the number the verdict uses.
    Stock-selection read: -26.2% — did LEN 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, Friedberg, Sacks

Conviction timeline

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

Plays vs SPY · % since first mention (2023-10-27)

Plays

expressionsymbolkindrelevancerationale
▼ SHORT LENstock PRIMARY largest Florida/coastal homebuilder — insurance affordability is a direct input to coastal home demand and price
▼ SHORT ITBetf adjacent US homebuilders broadly, levered to coastal-market demand and home values

Mention log

Friedberg
Friedberg equities w=0.87 · n=120 · E151 (2023-10-27) · explicit_prediction · strength 3 ▶ 1:19:36 SUPPORT
“there's going to be a real economic cost to bear on the order of several trillion dollars over time because someone has to underwrite that real estate ... it actually translates economically through the reinsurance and insurance markets into the real estate markets fairly quickly”
Chamath
Chamath equities w=0.84 · n=160 · E151 (2023-10-27) · sentiment · strength 2 ▶ 1:20:14 SUPPORT
“it's become economically untenable in a lot of places for these folks to be able to insure, insure their home”
Friedberg
Friedberg equities w=0.87 · n=120 · E163 (2024-01-26) · sentiment · strength 2 ▶ 1:29:55 SUPPORT
“These sorts of events, more frequent, more scary, more significant. Hotter oceans are driving these events”
Chamath
Chamath equities w=0.84 · n=160 · E163 (2024-01-26) · sentiment · strength 2 ▶ 1:30:44 SUPPORT
“I have to take the wood shingles off because we can't get the insurance people to insure.”
Friedberg
Friedberg equities w=0.87 · n=120 · E199 (2024-10-11) · explicit_prediction · strength 3 ▶ 16:02 SUPPORT
“So you can kind of think about Florida state's re-insurance thing being effectively bankrupt. It doesn't really have the capacity to underwrite the insurance anymore. So the real question for everyone is, is the federal government going to have to step in and start to support the price of homes?”
Chamath
Chamath equities w=0.84 · n=160 · E199 (2024-10-11) · explicit_prediction · strength 3 ▶ 25:31 SUPPORT
“My personal belief is I think that the real estate markets in some of these places are meaningfully mispriced. And specifically what I mean is that they are massively overpriced.”
Sacks
Sacks equities w=0.89 · n=96 · E199 (2024-10-11) · positioning · strength 2 ▶ 28:26 SUPPORT
“So, it was a good thing that I sold my Miami place when I started.”

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

Friedberg
Friedberg w=0.87
3 scoring events · 58% of moves
+58.6 → net +58.6
Chamath
Chamath w=0.84
3 scoring events · 30% of moves
+30.3 → net +30.3
Sacks
Sacks w=0.89
1 scoring event · 12% of moves
+12.6 → net +12.6

⏳ decay drained -55.8 over the idea's life — that's time passing, attributed to no one

Score events

episodekindΔafternote
E151 2023-10-27 init +36.4 36.4 E151 born by Friedberg (explicit_prediction x3) [w=0.87]
E151 2023-10-27 reinforce +12.0 48.4 E151 Chamath support x2 (new voice) [w=0.84]
E152 2023-11-03 decay -1.9 46.5 E152 silent
E156 2023-12-08 decay -1.9 44.6 E156 silent
E157 2023-12-16 decay -1.8 42.8 E157 silent
E158 2023-12-23 decay -1.7 41.1 E158 silent
E159 2023-12-29 decay -1.6 39.5 E159 silent
E160 2024-01-06 decay -1.6 37.9 E160 silent
E161 2024-01-13 decay -1.5 36.4 E161 silent
E162 2024-01-19 decay -1.5 34.9 E162 silent
E163 2024-01-26 reinforce +8.5 43.4 E163 Friedberg support x2 [w=0.87]
E163 2024-01-26 reinforce +7.1 50.5 E163 Chamath support x2 [w=0.84]
E164 2024-02-02 decay -2.0 48.5 E164 silent
E165 2024-02-09 decay -1.9 46.5 E165 silent
E166 2024-02-16 decay -1.9 44.7 E166 silent
E167 2024-02-23 decay -1.8 42.9 E167 silent
E168 2024-03-01 decay -1.7 41.2 E168 silent
E169 2024-03-08 decay -1.6 39.5 E169 silent
E170 2024-03-15 decay -1.6 37.9 E170 silent
E171 2024-03-22 decay -1.5 36.4 E171 silent
E172 2024-03-29 decay -1.5 35.0 E172 silent
E173 2024-04-05 decay -1.4 33.6 E173 silent
E174 2024-04-12 decay -1.3 32.2 E174 silent
E175 2024-04-19 decay -1.3 30.9 E175 silent
E176 2024-04-26 decay -1.2 29.7 E176 silent
E177 2024-05-03 decay -1.2 28.5 E177 silent
E178 2024-05-10 decay -1.1 27.4 E178 silent
E179 2024-05-17 decay -1.1 26.3 E179 silent
E180 2024-05-24 decay -1.1 25.2 E180 silent
E181 2024-05-31 decay -1.0 24.2 E181 silent
E182 2024-06-07 decay -1.0 23.2 E182 silent
E183 2024-06-14 decay -0.9 22.3 E183 silent
E184 2024-06-20 decay -0.9 21.4 E184 silent
E185 2024-06-29 decay -0.9 20.6 E185 silent
E186 2024-07-04 decay -0.8 19.7 E186 silent
E187 2024-07-12 decay -0.8 19.0 E187 silent
E188 2024-07-19 decay -0.8 18.2 E188 silent
E189 2024-07-26 decay -0.7 17.5 E189 silent
E190 2024-08-02 decay -0.7 16.8 E190 silent
E191 2024-08-09 decay -0.7 16.1 E191 silent
E192 2024-08-16 decay -0.6 15.5 E192 silent
E193 2024-08-23 decay -0.6 14.8 E193 silent
E194 2024-08-30 decay -0.6 14.2 E194 silent
E195 2024-09-06 decay -0.6 13.7 E195 silent
E196 2024-09-20 decay -0.5 13.1 E196 silent
E197 2024-09-27 decay -0.5 12.6 E197 silent
E198 2024-10-03 decay -0.5 12.1 E198 silent
E199 2024-10-11 reinforce +13.7 25.8 E199 Friedberg support x3 [w=0.87]
E199 2024-10-11 reinforce +11.2 37.0 E199 Chamath support x3 [w=0.84]
E199 2024-10-11 reinforce +12.6 49.5 E199 Sacks support x2 (new voice) [w=0.89]
E200 2024-10-18 decay -2.0 47.6 E200 silent
E201 2024-10-25 decay -1.9 45.7 E201 silent