# Cavaliers vs. Knicks: O/U 215.5

> Polymarket binary prediction market. 50% implied probability of YES as of Thu, 21 May 2026 17:27:12 GMT. 24h change -3.0pp, 24h volume $406.6K.

**Canonical URL:** https://orrery.me/markets/nba-cle-nyk-2026-05-21-total-215pt5
**Polymarket source:** https://polymarket.com/event/nba-cle-nyk-2026-05-21-total-215pt5
**Category:** Sports
**Resolves by:** May 22, 2026
**Last fetched:** 2026-05-21T17:27:12.829Z

## Live snapshot

| Metric | Value |
|---|---|
| YES probability | **50¢** (50%) |
| Δ 1h | -2.0pp |
| Δ 24h | -3.0pp |
| Δ 1w | +0.0pp |
| 24h volume | $406.6K |
| Lifetime volume | $410.2K |
| Liquidity (orderbook depth) | $268.0K |
| Spread | 1.00pp |

## Resolution

**Resolves by:** May 22, 2026

**Source:** https://www.nba.com/

### Market description (verbatim from Polymarket)

> In the upcoming NBA game, scheduled for May 21 at 8:00 PM ET:
> 
> This market will resolve to "Over" if the Cavaliers and Knicks combine to score 216 or more points in this game.
> 
> If the combined total is less than 216, this market will resolve to "Under".
> 
> If the game is postponed, this market will remain open until the game has been completed. If the game is canceled entirely, with no make-up game, this market will resolve 50-50.

## Active signals

Signals are deterministic rules with explicit confidence (0..1). They describe *why a price moved* — they are not trade recommendations and do not predict the outcome.

- **momentum** (confidence 64%): Probability moved down 3.0pp in 24h with 1.5× liquidity turnover and a tight spread.
- **resolution_risk** (confidence 40%): Expires in 7h.

## Top holders

**Top YES holders**

- `0x5b4e…0232` — 98,098.36 shares
- `0x9495…9a27` — 77,613.563 shares
- `0x293e…4717` — 49,298.523 shares
- `0xa2cc…0cbc` — 29,999.891 shares
- `0x4df3…788f` — 12,689.858 shares

**Top NO holders**

- `0x4924…3782` — 203,836.706 shares
- `0xf559…f462` — 23,219.17 shares
- `0xdb85…152f` — 20,000 shares
- `0x5d1d…afd2` — 19,232.831 shares
- `0x5268…135d` — 16,323.69 shares

## 7-day price-history summary

| Metric | Value |
|---|---|
| Sample count | 27 |
| Window start | 2026-05-20T15:00:09.000Z |
| Window end | 2026-05-21T16:57:07.000Z |
| Range | 50¢ → 54¢ |
| Net change | +0.0pp |

Full series available as JSON via `GET https://orrery.me/api/markets?slugs=nba-cle-nyk-2026-05-21-total-215pt5` — the chart on the human page is rendered from this same data.

## Cite this

```
Orrery. "Cavaliers vs. Knicks: O/U 215.5 — 50% on Polymarket."
Retrieved 2026-05-21T17:27:12.829Z from https://orrery.me/markets/nba-cle-nyk-2026-05-21-total-215pt5.
```

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