📈 PBM margin model breaks on drug-price transparency
Pharmacy benefit managers extract the largest single share of US drug-cost inflation through opaque formulary rebates, undisclosed subsidiary skims and contractual gag clauses. Cuban's published cost-plus price list, FTC litigation against the PBMs and CMS negotiation together force that opacity open, and mandated contract transparency drops all-in drug pricing 30-40%, compressing the PBM profit pools inside the listed payer conglomerates.
0
CONVICTION
peaked 41.8 EMBER
EMBER
band
▼ SHORT CVS
expression · bearish equities
MISS
outcome · R -28.8% · α -48.1%
2025-10-03
window closed
⚖ Why this verdict
fully deterministic — evaluate.py replays this from daily closes; nothing below is editable or hand-set
- Window: 2024-10-03 → 2025-10-03 — first mention + 12-month horizon, then the window locks.
- The call: ▼ SHORT CVS (primary play). CVS rose 28.8% over the window → direction-adjusted R = -28.8% (the call lost money).
- Benchmark: holding SPY over the same window returned +19.3%
→ α = -28.8 − (+19.3) = -48.1%
— what this call made or lost against just owning the index. This is the number the verdict uses.
Stock-selection read: -9.5% — did CVS 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.
- Rule fired:
· HIT — R ≥ +10% AND α ≥ +5· PARTIAL — R ≥ +5% OR α ≥ 0▶ MISS — everything else
- Credit: supporters of a MISS earn 0 each, opposers the inverse — this feeds the scoreboard weights. supported: Chamath, Friedberg | proxy-sensitive: CI→PARTIAL (+6.9%); UNH→HIT (+37.9%)
Conviction timeline
bands: green ≥ 65 · watch ≥ 45 · ember ≥ 15
Plays vs SPY · % since first mention (2024-10-03)
Plays
| expression | symbol | kind | relevance | rationale |
|---|---|---|---|---|
| ▼ SHORT | CVS | stock | PRIMARY | owns Caremark, the largest US PBM; most exposed to rebate-spread compression |
| ▼ SHORT | CI | stock | adjacent | Express Scripts is the second-largest PBM and a majority of Cigna's earnings |
| ▼ SHORT | UNH | stock | adjacent | Optum Rx carries the same opaque-rebate economics inside UnitedHealth |
Mention log
MA
Mark Cuban
(guest ×0.5)
no equities track record
· E198 (2024-10-03) · explicit_prediction · strength 3
▶ 1:43:45
SUPPORT
“And by working, by requiring transparency in all contracts, signed by anybody anywhere in terms of pricing, you are going to see the same impact on across-the-board pricing of a decrease of 30-40 percent. And so all that is going to reduce out-of-pocket spending for everybody, reduce government spending for everybody, and have a net positive impact.”
Friedberg
equities w=0.87 · n=120
· E228 (2025-05-17) · explicit_prediction · strength 3
▶ 1:33:36
SUPPORT
“There's three major PBMs, CVS Caremark, Express Scripts and Optum RX. These three companies make on average approximately three bucks in operating profit per prescription claim processed. They make money in markups.”
Chamath
equities w=0.84 · n=160
· E228 (2025-05-17) · sentiment · strength 2
▶ 1:29:04
SUPPORT
“So there's a lot of other organizations in this value chain that kind of eat out of that dollar before it gets to the sense that goes to pharma. And so it's important to make sure we don't overlook those. The biggest ones being the PBMs.”
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
⏳ decay drained -34.6 over the idea's life — that's time passing, attributed to no one
Score events
| episode | kind | Δ | after | note |
|---|---|---|---|---|
| E198 2024-10-03 | init | +21.0 | 21.0 | E198 born by Mark Cuban (explicit_prediction x3) [w=0.50] |
| E199 2024-10-11 | decay | -0.8 | 20.2 | E199 silent |
| E200 2024-10-18 | decay | -0.8 | 19.4 | E200 silent |
| E201 2024-10-25 | decay | -0.8 | 18.6 | E201 silent |
| E202 2024-11-01 | decay | -0.7 | 17.8 | E202 silent |
| E203 2024-11-08 | decay | -0.7 | 17.1 | E203 silent |
| E204 2024-11-16 | decay | -0.7 | 16.4 | E204 silent |
| E205 2024-11-23 | decay | -0.7 | 15.8 | E205 silent |
| E206 2024-12-07 | decay | -0.6 | 15.1 | E206 silent |
| E207 2024-12-13 | decay | -0.6 | 14.5 | E207 silent |
| E208 2024-12-20 | decay | -0.6 | 14.0 | E208 silent |
| E209 2025-01-04 | decay | -0.6 | 13.4 | E209 silent |
| E210 2025-01-11 | decay | -0.5 | 12.9 | E210 silent |
| E211 2025-01-18 | decay | -0.5 | 12.4 | E211 silent |
| E212 2025-01-25 | decay | -0.5 | 11.9 | E212 silent |
| E213 2025-01-31 | decay | -0.5 | 11.4 | E213 silent |
| E214 2025-02-07 | decay | -0.5 | 10.9 | E214 silent |
| E215 2025-02-15 | decay | -0.4 | 10.5 | E215 silent |
| E216 2025-02-21 | decay | -0.4 | 10.1 | E216 silent |
| E217 2025-03-01 | decay | -0.4 | 9.7 | E217 silent |
| E218 2025-03-08 | decay | -0.4 | 9.3 | E218 silent |
| E219 2025-03-15 | decay | -0.4 | 8.9 | E219 silent |
| E220 2025-03-22 | decay | -0.4 | 8.6 | E220 silent |
| E221 2025-03-29 | decay | -0.3 | 8.2 | E221 silent |
| E222 2025-04-05 | decay | -0.3 | 7.9 | E222 silent |
| E223 2025-04-11 | decay | -0.3 | 7.6 | E223 silent |
| E224 2025-04-19 | decay | -0.3 | 7.3 | E224 silent |
| E225 2025-04-26 | decay | -0.3 | 7.0 | E225 silent |
| E226 2025-05-02 | decay | -0.3 | 6.7 | E226 silent |
| E227 2025-05-09 | decay | -0.3 | 6.4 | E227 silent |
| E228 2025-05-17 | reinforce | +17.6 | 24.1 | E228 Chamath support x2 (new voice) [w=0.84] |
| E228 2025-05-17 | reinforce | +17.8 | 41.8 | E228 Friedberg support x3 (new voice) [w=0.87] |
| E229 2025-05-24 | decay | -1.7 | 40.2 | E229 silent |
| E231 2025-06-13 | decay | -1.6 | 38.6 | E231 silent |
| E232 2025-06-21 | decay | -1.5 | 37.0 | E232 silent |
| E233 2025-06-28 | decay | -1.5 | 35.5 | E233 silent |
| E234 2025-07-04 | decay | -1.4 | 34.1 | E234 silent |
| E235 2025-07-11 | decay | -1.4 | 32.7 | E235 silent |
| E236 2025-07-19 | decay | -1.3 | 31.4 | E236 silent |
| E237 2025-08-01 | decay | -1.3 | 30.2 | E237 silent |
| E238 2025-08-09 | decay | -1.2 | 29.0 | E238 silent |
| E239 2025-08-15 | decay | -1.2 | 27.8 | E239 silent |
| E240 2025-08-22 | decay | -1.1 | 26.7 | E240 silent |
| E241 2025-08-29 | decay | -1.1 | 25.6 | E241 silent |
| E242 2025-09-07 | decay | -1.0 | 24.6 | E242 silent |
| E243 2025-09-19 | decay | -1.0 | 23.6 | E243 silent |
| E244 2025-09-27 | decay | -0.9 | 22.7 | E244 silent |
| E245 2025-10-03 | decay | -0.9 | 21.8 | E245 silent |