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MOS$21.22 +0.00%+ Alert
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● 10 Oct · US closed · scored 10:50
● Sat 10 Oct 2026/US closed · opens Mon 14:30 BST/101 names scored today/last score 10:32 BSTResearch, not advice · every call is published at Proof

MOS

Mosaic Co
$21.22 · +0.00% vs $21.22 close · scored 10:50 · stale
Decision brief
NEUTRAL · 61/100
What changed
No prior comparable read.
Evidence is stale — treat this read cautiously.
What would change the view
composite leaves the neutral band · confidence deteriorates materially from 61/100
For the read
options volume favours puts
Against / uncertainty
open interest leans against the read · signal stability is low
The read
Neutral, moderately evidenced, and the tape has led price here.
−100 bearish0bullish +100
−0.3 composite+0.0 vs a week ago
Evidence
61 / 100 · top 35% today
6,769 contracts · quality 79 · stability 0.00
neutral · −0.20% · n=1,229
01

Why it’s +0

Method
What traded today · weight 62%
−14.8 pts
2,574 calls · 38.0%4,195 puts
bias −23.9 × 0.62
What’s on the books · weight 38%
+14.5 pts
34,571 call OI · 69.1%15,434 put OI
bias +38.3 × 0.38
Equals
−0.3
51% of the score comes from today’s volume, 49% from open interest. Disagree with either? See the method.
02

What changed: 45 days of tape against price

14d43d90d365d · Reader
tape composite (bars)— price◆ big one-day moves30d: price −20.02% · tape −61.6 · corr 0.33
● peak +61◆ −85.1 in a day▼ low −32.108-2509-0109-0809-1509-2209-2910-0610-10$27$21

Plain English: Over 30 days, price has fallen 20.02% while the tape has faded 61.6 points. They agree.

03

Should you trust it?

note
Some evidence, not a lot
confidence 61 (65th pct) · quality 79 · 6,769 contracts
note
Jumpy
0.00 vs 7-day rolling · choppiness 63
note
Neutral reads make no call
neutral · put-heavy · mid liquidity → −0.20% avg, n=1,229
pass
Tape has led price
tape has led MOS’s price by 2 days (r=-0.27, n=44)
note
Our record on MOS is mixed
42% hit rate on 342 closed calls · payoff 3.23×
04

Where the positions sit

No per-strike chain is stored for this name yet, so we can’t show where the positions sit. The totals above still come from today’s chain.
Spot $21.22. The $25 strike holds the most open interest (the “wall”, 9,588). Near-dated expiry in the mix, so OI is noisier.
05

Our record on MOS

Proof
42%
hit rate · 342 closed
3.23×
payoff
+1.12%
avg return
2 Oct · 4h
$21.22 → $21.22
+0.00%flat
2 Oct · 4h
$21.33 → $21.33
+0.00%flat
2 Oct · 4h
$21.55 → $21.55
+0.00%flat
1 Oct · 4h
$20.83 → $20.83
+0.00%flat

One rule everywhere: a move of 0.05% or less is flat, and flat is not a hit. That is the same rule Proof uses; 138 of these 342 calls were flat.

06

Catalysts & context

EPS surprise · last 4 quarters
+4.49%Q3 ’25
−53.26%Q4 ’25
−79.13%Q1 ’26
+3.26%Q2 ’26
Street MixedNext report — P/E 12.41 · fwd 21.07Beta 0.850 52w $19.80–$36.00IV rank —
Mosaic Co · Chemicals
Neutral, moderately evidenced. The tape has led price here.
−100 bearish0bullish +100
−0.3evidence 61
neutral · −0.20% · n=1,229
Why it’s +0
−14.8 volume · 38% calls+14.5 OI · 69% calls
45 days · tape bars, price line
◆ −85.108-2509-0109-0809-1509-2209-2910-0610-10$27$21
Price −20.02%, tape −61.6 over 30 days. The two agree.
Should you trust it?
noteSome evidence, not a lot
confidence 61 (65th pct) · quality 79 · 6,769 contracts
noteJumpy
0.00 vs 7-day rolling · choppiness 63
noteNeutral reads make no call
neutral · put-heavy · mid liquidity → −0.20% avg, n=1,229
noteOur record on MOS is mixed
42% hit rate on 342 closed calls · payoff 3.23×
Ask about MOS
Why did the score drop from +9 to +0 this week?
It was mostly one day. The composite was +8.7 on 1 Oct, then fell to −0.3 on 2 Oct as the price moved from $21.65 to $21.55. It’s at −0.3 now.

Today’s −0.3 breaks down as −14.8 from volume and +14.5 from open interest. I can’t split past days the same way: the stored history keeps call/put volume but not open interest for past days.
tape_history · 45 ptsstock_scores · 10:50method · 62/38
Ask
Explain the $25 wallCompare MOS vs SHWAlert me before earnings