---
title: "Will the 12-month percentage change in Green Street’s U.S. All-Property Commercial Property Price Index for October 2027 be below -20%?"
canonical_url: https://betcrypto.now/events/will-the-12-month-percentage-change-in-green-streets-us-all-property-commercial-property-price-index-for-october-2027-be-below-20
status: live
trading_closes_at: 2027-11-01T03:59:00+00:00
total_volume_usd: 4238.23
venues: ["Kalshi"]
categories: []
prices_as_of: 2026-11-07T12:06:23+00:00
publisher: BetCrypto
data_api: https://betcrypto.now/api/v1/events/will-the-12-month-percentage-change-in-green-streets-us-all-property-commercial-property-price-index-for-october-2027-be-below-20
---

# Will the 12-month percentage change in Green Street’s U.S. All-Property Commercial Property Price Index for October 2027 be below -20%?

Live · $4,238 traded · listed on Kalshi

## About

If the first-published 12-month percentage change in Green Street’s U.S. All-Property Commercial Property Price Index for October 2027 is below 

-20%, then the market resolves to Yes.

The Underlying is the 12-month percentage change in the U.S. All-Property Commercial Property Price Index reported by Green Street for October 2027, comparing October 2027 with October 2026.

The published 12-month percentage change is used directly, at the precision reported in the release’s headline or accompanying narrative. No percentage change is independently calculated from index levels, and no additional rounding is applied. “Below −20%” means strictly less than −20%; a reported change of exactly −20.0% resolves No.

The first published October 2027 figure is used, including if designated preliminary or estimated. Subsequent corrections and revisions are ignored.

Only the October 2027 observation determines the outcome. A decline exceeding 20% in an earlier month does not independently satisfy the condition. Publication delays do not change the observation month; missing or discontinued data are handled under the governing contract’s provisions.

_From Kalshi's listing._

## Main market

| Outcome | Probability | Cheapest | Kalshi |
|---|---|---|---|
| Yes | — | — | — |
| No | — | — | — |

## Open on a venue

- [Kalshi](https://betcrypto.now/go/e/1007204?via=md)

---

Probability is the cross-venue consensus (book midpoints, 0–100%). Venue columns are what buying costs there (the ask). Prices move constantly; re-check at the canonical URL or the [JSON API](https://betcrypto.now/api/v1/events/will-the-12-month-percentage-change-in-green-streets-us-all-property-commercial-property-price-index-for-october-2027-be-below-20).

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