Market Intelligence

Reading a card’s detail page and price charts

A card’s detail page is the single screen where price, ratings, stats, and history come together. Once you know what each number means, you can decide in seconds whether a card is worth buying, flipping, or watching. Here’s a tour of the whole page.

A DiamondOps card detail page with price block, price-history chart, flip analysis, and full stats
A card page: live prices, the 7/30/90-day chart, flip analysis (incl. the 10% tax), and the full stat sheet.

The price block: buy-now, sell order, and the gap

At the top you’ll see the two live market prices. BUY NOW is the lowest sell order — what you’d pay to own the card instantly. SELL ORDER is the highest active bid — what you’d receive by selling instantly. The space between them is the spread, and the page also shows FLIP PROFIT and FLIP ROI: the after-tax profit and return if you bought at one and sold at the other. Those flip numbers already account for the 10% market tax — see The 10% market tax for the math behind them.

OpScore and overall: two different questions

The overall badge is the game’s headline rating. The OpScore badge is our rating of how good the card actually is in the box, built from the attributes that win games rather than a flat average. When OpScore runs well ahead of what the price implies, you may be looking at an underrated card — the OpScore & rankings guide explains how it’s calculated. A value-gap badge calls out cards whose price and quality are out of line.

The attribute breakdown

Below the price, the full stat sheet is split the way it actually matters — by handedness, so you’re not fooled by a single blended number:

  • Hitters — Contact and Power split L/R, plus Discipline, Vision, fielding, arm strength/accuracy, reaction, and speed/stealing. A card can rake against righties and struggle against lefties; the split shows it.
  • Pitchers — the full arsenal (each pitch and its ratings) alongside control and the velocity that decides how hittable the stuff is.
  • Real outcome stats — where available, K/BF and Hits/BF versus left and right show how the card has actually performed, not just its ratings.

Quirks

The card’s quirks — the situational modifiers that make it better in specific moments — are listed here too. Quirks are easy to overlook on a ratings sheet but they’re often the difference between two similar cards. If you’re building around quirks, the Quirk Stack Finder guide shows how to make them reinforce each other across a lineup.

The price chart: 7d, 30d, 90d

The price history chart is where flips and buys are made or avoided. Toggle between 7-day, 30-day, and 90-day ranges to see the trend at the right zoom:

  • 7d — is the spread you’re eyeing a stable gap or a one-off blip? Short range answers that.
  • 30d — the working trend: is the card drifting up, down, or flat?
  • 90d — the big picture, including how a program or pack release reset the price. Great for spotting a card that’s near a long-term floor.

A sharp, isolated spike or drop is worth a second look — it can be a real event or manipulated activity, which we flag (see anomalies & bot-risk). The page also shows when the data was last refreshed and when the card was first seen, so you know how much history backs the chart.

Watch it, alert on it, or jump to the source

  1. Star the card to add it to your watchlist and keep it a tap away.
  2. Set a price alert so you’re notified when it crosses the number you care about, instead of refreshing the page.
  3. Use View on MLB The Show to jump straight to the card on the official site when you want the source.

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