Jean Carlos Sió
SS · Double-A · 22.0y · #474 of 7,922 we rate
- The player
- SOLID
- The market
- Expensive
- What to do
- Wait for a better price
65 out of 100 — our all-round score from the season line, his tools against the level, and how young he is for it.
His best base card asks $11.35, over the $3.25–9.50 that card has sold in.
Closest of his is 2026 Topps Bowman Chrome #CPA-JSL Jean… at $9.50. Needs a $4 drop.
Our take
Solid prospect, expensive market.
Jean Carlos Sió scores 65 out of 100 (#474 of the 7,922 we score), and the case rests on one thing: young for the level — +2.0y vs his level at Double-A — younger than 91% of the players there.
His core Bowman card has been selling at $3–10 off 3 confirmed sales.
The thing most likely to be wrong here: nothing has sold — no confirmed sale of any card of his in 90 days, so nothing on this page can tell you what a fair price is.
The signal
Young for the level
+2.0y vs his level at Double-A — younger than 91% of the players there.
Plate discipline: well below
6.8% BB — walk rate — higher means he makes pitchers come to him
OPS slipping
.820 last season to .750 this one.
Power: plus
.209 ISO — isolated power — slugging minus batting average, so hits that go for extra bases Better than 81% at his level.
Moved up and held it
Low-A to Double-A.
Premium position
SS — the bat does not have to carry the whole profile.
Why now
7 new copies listed this week
Fresh supply on this exact card. More choice, and more downward pressure.
What could go wrong
Nothing has sold
No confirmed sale of any card of his in 90 days, so nothing on this page can tell you what a fair price is.
Benchmark not checklist-verified
His core card was identified from how raw base 1st bowman chrome auto sellers describe it, not from a checklist. The identity is likely, not established.
Asks above the sold band
Every live card of his we can price is asking more than these have actually sold for, so today's entry is at a premium.
What the hobby pays for him
Benchmark card: 2026 Bowman Chrome 1st Auto — raw, base, unnumbered.
Described by 40 independent sellers — observed, not checklist-verified.
$2.93–10.45midpoint $8.00
Confirmed· 3 salesmost recent 2026-08-25 · 44 listed now
- 7 days
- not enough sales
- 30 days
- not enough sales
- 90 days
- not enough sales
This is his benchmark, not the value of any particular card in front of you — a /250 is a different market.
The card that matters
A card-quality answer, not a price one. It does not change when a seller changes their mind.
2026 Bowman Chrome 1st Auto
Raw base 1st Bowman Chrome Auto
The canonical prospect vehicle — every player who has one is compared on it. Identified from 40 independent sellers describing it — likely, not established.
A card is never the one to own because it is numbered. Scarcity is a modifier on a vehicle, not a vehicle — a /25 of a card nobody collects is a rarer version of nothing.
Best value right now
Where the money would go today, which is frequently a lesser card than the one above — or nowhere.
No good entry today
The closest to fair is 2026 Bowman Chrome 1st Jean Carlos Sio Auto at $19.50, 144% over the $3.25–9.50 that copies of it have confirmed sold in. Nothing of his is currently below its own sold band.
That card at or under $3.25 delivered would be at the bottom of what it has actually sold for.
What would make this a buy
- Needs a $4 drop
- Player not there yet
- 2026 Topps Bowman Chrome #CPA-JSL Jean… at or under $6.40 delivered.
- On his best-priced card: needs a $5 drop.
What is for sale right now
56 cards of his are listed · 0 of the 56 we can judge clear the investment bar. These are the 6 worth looking at, best first; the other 50 are under "The whole live market".
2026 Bowman Chrome 1st Jean Carlos Sio CPA-JSL Prospects Auto SF Giants
base · raw · condition not stated · listed 75d
Priced above value · 1 other thing in the way
Data stale — Last confirmed live 56h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
—
sold $3.25–9.50
PASS
2026 Bowman 1st Jean Carlos Sio 1st Chrome Auto San Francisco Giants (AU,RC)
base · raw · condition not stated · takes offers · listed 12d
Priced above value · 1 other thing in the way
Data stale — Last confirmed live 56h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
—
sold $3.25–9.50
PASS
Jean Carlos Sio Bowman 1st Chrome Auto
base · raw · condition not stated · takes offers · listed 12d
Priced above value · 1 other thing in the way
Identity uncertain — the year
—
sold $3.25–9.50
PASS
2026 BOWMAN CHROME JEAN CARLOS SIO 1st AUTO TRUE ORANGE /25 Giants #CPA-JSL
/25 · raw · condition not stated · takes offers · listed 6d
Evidence still thin · 2 other things in the way
Data stale — Last confirmed live 61h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
—
modeled $5.27–43.89
PASS
2026 Bowman Chrome Jean Carlos Sio 1st Orange Shimmer /25 SSP AUTO - Giants
/25 · raw · condition not stated · takes offers · listed 106d
Evidence still thin · 2 other things in the way
—
modeled $5.27–43.89
PASS
2026 Bowman Jean Carlos Sio Chrome Auto Gold Refractor #/50 1st RC Giants
/50 · raw · condition not stated · takes offers · listed 7d
Evidence still thin · 2 other things in the way
Data stale — Last confirmed live 61h ago — beyond the 48h bar. Needs a re-sight before the analysis is current.
$96.98
modeled $4.21–35.11
PASS
Your research
Private to you. What you are waiting for, and why — so next time you open this page you do not have to remember.
Your target
The price you are waiting for, and why. Private to you.
Your notes
Sign in to keep your research — private notes on what you are watching and why.
The evidence
Everything the reading above is built on. Open whichever part you want to check.
The parallel ladder3 versions of his cards in raw autos, each priced off its own confirmed sales
Every version of his cards we can see, base to 1/1. Each rung is priced off its own confirmed sales — a rung nothing has verifiably sold at shows no value rather than borrowing a neighbour's.
Showing Raw autos.
NO CLEAR SWEET SPOT
No rung of his has a confirmed sale behind it, so there is no price to compare any step against.
- BaseTHIN EVIDENCE
Listed at $9.50, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $9.50 live
- Scarcity
- unnumbered
- Trades
- no sales
- Premium
- —
- /99THIN EVIDENCE
Listed at $29.00, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $29.00 live
- Scarcity
- 99 made
- Trades
- no sales
- Premium
- +205%
Premium from asking prices, not sales - Gold Refractor /50THIN EVIDENCE
Listed at $96.98, but nothing confirmed has sold on this rung.
- Sold
- —
- Live
- $96.98 live
- Scarcity
- 50 made
- Trades
- no sales
- Premium
- +234%
Premium from asking prices, not sales
1 listing sits in a different grade class or auto status and is kept off this ladder — a slabbed sale is not evidence about a raw card.
What he is good atSkills 52 on the 20–80 scale, against 496 hitters at Double-A
What he is good at
skills overall 52 / 80
On the 20–80 scale every scouting report uses: 50 is average, and every 10 points is one standard deviation. Measured against 496 hitters at Double-A — measured against real players at the same level right now — not a scout's projection of what he becomes.
Contact
Can he hit it?
54
above average · better than 65% at his level
22.5% K
strikeout rate, inverted — lower means more bat-to-ball
Power
Can he hit it hard?
59
plus · better than 81% at his level
.209 ISO
isolated power — slugging minus batting average, so hits that go for extra bases
Plate discipline
Does he pick his pitch?
41
well below · better than 19% at his level
6.8% BB
walk rate — higher means he makes pitchers come to him
Speed
Can he run?
52
average · better than 56% at his level
22 SB per 600 PA
stolen bases per full season of plate appearances
Production
Is it showing up in the box score?
53
above average · better than 63% at his level · the result, not a skill
.750 OPS
on-base plus slugging — the result, which carries the luck as well as the skill
Age for the level
Is he doing it young?
63
plus · better than 91% at his level · context, not a skill
+2.0y vs his level
years younger than the median player at his level — positive is young for the level
The overall figure averages the 4 skill rows only. The box-score row and the age row are shown but deliberately left out of it — one is the result those skills produced, and the other is not a skill at all.
The argument
skills at the 55th percentile of the cohort, production at the 63th — the gap between the two is ordinary for this level.
Nothing to arbitrage here: he is producing about what his skills say he should. Judge the card on price and the player on the grades.
How this is read: his skills average 55 and his production sits at 63, a gap of -8. That gap on its own means little — an average of several percentiles always sits nearer the middle than a single one — so it is ranked against the same figure computed the same way for the 496 players at his level we hold a full profile for, where it lands at the 36th percentile.
Will he get there?
Real chance 5.9 / 10
- already at Double-A
This is an ordering score, not a percentage. We hold no outcome data and have run no backtest, so “a 93% chance of reaching the majors” would be a number we made up and you then spent money on. Built on 100% of what it wants to know.
How he is playingThe Double-A line, and how it compares with last season
Hover any stat to see what it means. How each compares with the 496 other hitters at his level is graded in "What he is good at".
PA
222
AVG
.235
OBP
.306
SLG
.444
OPS
.750
better than 63%
HR
11
SB
8
BB%
6.8
K%
22.5
Is this player getting better?
Down from .820 to .750 OPS, but he moved up to Double-A — a step back at a harder level is normal.
Moved up from Low-A to Double-A — the pitching is harder this year.
OPS
.820▼.750
Power
.111▲.209
Walks
11.9%▼6.8%
Strikeouts
11.9%▲22.5%
Last season, 385 times at bat. Two seasons that already happened. Nothing here is a prediction.
What his cards have sold forno completed sales logged yet
Real completed sales only — nothing here is an estimate. These come from the scan: it asks eBay about listings it has already seen, and one that ends at a fixed price is recorded as a sale. That builds up over days. You can add one by hand below if you happen to know it, but you are not meant to be the price database.
No sales logged yet. We need at least two to draw a line, and about five spread over a month before the numbers mean much. Add sales you find using the button below.
The whole live market56 listed · 56 eBay-verified · 50 not shown above
- Listings
- 56
- Lowest seen
- $9.50
- Median ask
- $13.44
- Cheapest 1st auto
- $9.50
- Cheapest numbered 1st auto
- $29.00
56 eBay-verified
Latest eBay verification: 7 hours ago.
The other 50 cards
- $29.00Jean Carlos Sio 2026 Bowman Chrome 1st Auto Autograph 8/99 San Francisco GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio Green Grass Refractor 1st Auto 6/99 GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio Green Grass Refractor 1st Auto /99 GiantsPASS
- —2026 Bowman Jean Carlos Sio Chrome Auto Autograph 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Auto #CPA-JSL GiantsPASS
- —Topps 2026 Bowman Giants Chrome Prospect Auto 1st Bowman Jean Carlos Sio CPA-JSLPASS
- —2026 Bowman Chrome Jean Carlos Sio Black X-Fractor 1st Prospect Auto /10 BGS 9.5NEEDS EVIDENCE
- —2026 Bowman Chrome 1st Auto Jean Carlos Sio #CPA-JSL Refractor 066/499 (AU, RC)PASS
- —2026 BOWMAN JEAN CARLOS SIO AUTO ORANGE 1 /25 1st On Print eBay 1/1PASS
- $9.502026 Topps Bowman Chrome #CPA-JSL Jean Carlos Sio 1st Auto GiantsPASS
- $9.892026 Bowman Jean Carlos Sio 1st Chrome Prospect Auto Giants RC RookiePASS
- $10.782026 1st Bowman Chrome Jean Carlos Sio Auto #CPA-JSL - San Francisco GiantsPASS
- $11.352026 Bowman Jean Carlos Sio Chrome Auto 1st Prospect #CPA-JSL GiantsPASS
- $11.742026 Topps Bowman Chrome #CPA-JSL Jean Carlos Sio 1st Auto Giants 🔥📈PASS
- $11.80Topps 2026 Bowman Chrome Jean Carlos Sio Giants 1st Bowman AutoPASS
- $12.10Jean Carlos Sio 1st Chrome Auto Bowman CPA-JSL San Francisco Giants ProspectPASS
- $13.44Jean Carlos Sio Auto 2026 Bowman Chrome 1st #CPA-JSL San Francisco GiantsPASS
- $14.942026 Bowman Chrome Jean Carlos Sio 1st Bowman Auto Giants Prospect - SHIPS FAST!PASS
- $15.972026 Bowman Chrome 1st Auto CPA-JSL Jean Carlos Sio GiantsPASS
- $16.00JEAN CARLOS SIO 2026 BOWMAN CHROME 1ST AUTO #CPA-JSL GIANTSPASS
- $18.172026 Bowman Jean Carlos Sio Chrome Auto 1st Prospect #CPA-JSL GiantsPASS
- $19.502026 Bowman Chrome 1st Jean Carlos Sio AutoPASS
- —2026 BOWMAN CHROME JEAN CARLOS SIO 1ST RC AUTO #CPA-JSL GIANTSPASS
- —2026 1st Bowman - Chrome Auto 🔥 Jean Carlos Sio PASS
- —2026 Bowman Jean Carlos Sio Chrome Auto 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman #CPA-JSL Jean Carlos Sio 1st Prospect Chrome Auto San FranciscoPASS
- —2026 Bowman Chrome - Jean Carlos Sio 1st Bowman RC On-Card Auto #CPA-JSLPASS
- —2026 Bowman Jean Carlos Sio Chrome 1st Auto #CPA-JSLPASS
- —2026 Bowman Jean Carlos Sio Chrome Auto Autograph 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman 1st Jean Carlos Sio 1st Chrome Auto San Francisco Giants (AU,RC)PASS
- —Bowman 2026 Jean Carlos Sio Giants 1st Bowman Chrome RC Auto CPA-JSLPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Auto Certified Giants Prospect CPAJSLPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Bowman Auto Giants ProspectPASS
- —2026 Bowman Jean Carlos Sio Chrome Auto 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Bowman Prospect Autograph On Card Auto PASS
- —2026 Bowman Jean Carlos Sio 1st Auto Chrome 🔥 #CPA-JSL GiantsPASS
- —2026 Bowman Chrome- Jean Carlos Sio 1st Auto- San Francisco GiantsPASS
- —Topps 2023 Bowman Chrome Jean Carlos Sio Giants 1st Bowman Auto #CPA-JSIPASS
- —Topps 2026 Bowman Chrome 1st Bowman Jean Carlos Sio Auto CPA-JSI GiantsPASS
- —Topps 2026 Bowman Chrome 1st Bowman Jean Carlos Sio Auto Giants #CPA-JSLPASS
- —Jean Carlos Sio - 2026 Bowman Chrome - AUTO 1st Prospect #CPA-JSL SF GiantsPASS
- —Bowman 2026 Bowman Chrome 1st Rookie Auto Jean Carlos Sio #CPA-JSI GiantsPASS
- —Topps 2026 Bowman Jean Carlos Sio Giants 1st Bowman Green Auto CPA-JSL /99 ownedPASS
- —Jean Carlos Sio Bowman 1st Auto #CPA-JSL San Francisco GiantsPASS
- —2026 Bowman Jean Carlos Sio Chrome Auto Autograph 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Bowman Auto CPA-JSL Giants RookiePASS
- —2026 Bowman Jean Carlos Sio Chrome Auto 1st Prospect #CPA-JSL GiantsPASS
- —2026 Bowman Chrome Jean Carlos Sio 1st Bowman Certified Auto #CPASL GiantsPASS
- —2026 BOWMAN CHROME JEAN CARLOS SIO 1ST AUTO #CPA-JSL GIANTSPASS
- —Topps 2026 Bowman Chrome Jean Carlos Sio Giants 1st Bowman Auto #CPA-JSLPASS
What this page is missing1 thing we do not hold for him
What this page is missing
Everything above is built from what we actually hold. These are the gaps, so you know which parts of the argument are thin rather than wondering why a panel is quiet.
- We do not have a sold price in 90 days — add one and the whole price side fills in.
Worth reading for this player
- What a modeled fair value means — at least one value on this page was modeled rather than taken from a sale
- Parallel scarcity calculator — numbered parallels of his cards are in play, and print run drives the premium
- Best Offer calculator — at least one of his live listings accepts offers
- Certified vs aftermarket autographs — signed cards of his are listed, and the two kinds are not worth the same
- Parallels and print runs — his market includes numbered parallels, which are priced off the print run