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Category price index

Flow & Level Instruments

Starts at 100 in March 2026

Index level
98.6
-1.5% since March 2026
as of November 2026
1 month
-1.5%
3 months
-0.9%
12 months
—

Price barometer

Good price
Now · 98.5
Low 98.5 High 100.5

Where the index sits between its lowest and highest level so far.

What this index is built from

Parts tracked
2145
Parts with price history
855
Parts moving the index
667
Monthly price points
9596
Asking prices seen
31489
How to read this index

The level starts at 100. 110 means the parts in this index cost about 10% more than at the start; 95 means about 5% less.

It follows price changes, not price levels: each month it moves by the typical change of the parts that were priced both that month and the month before, so a few very expensive parts never dominate it, and parts coming and going don't move it on their own.

1, 3 and 12 months show the change over that period. The barometer shows where today's level sits between the index's lowest and highest point.

98 99 100 101 Mar 2026 May 2026 Jul 2026 Sep 2026 Nov 2026
Each month moves by the typical price change of the parts that had a price that month and the month before (the most extreme quarter either way left out). A month with too few changes holds the previous level.

Month by month

Month Index level Change Parts priced
November 2026 98.6 -1.5% 498
October 2026 100.0 +0.3% 639
September 2026 99.7 +0.3% 442
August 2026 99.4 +0.5% 299
July 2026 99.0 -0.9% 377
June 2026 99.8 -0.6% 377
May 2026 100.5 +0.4% 487
April 2026 100.1 +0.1% 563
March 2026 100.0 Start (100) —
Browse Flow & Level Instruments → All indices

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