BITI vs BTCZ: which held to its multiple?

Over three months against its own daily promise, BITI finished 1.2 points over and BTCZ 0.5 points over. ProShares Short Bitcoin ETF and T-REX 2X INVERSE BITCOIN DAILY TARGET ETF.

−29.6%
BITI returned, 3 months
−53.7%
BTCZ returned, 3 months
+9.6 pts
BITI from its stated multiple
+24.8 pts
BTCZ from its stated multiple
BITI · 3 months to Sep 30, 20269.6 pts ahead of its stated multiple
9.6 pts ahead of its stated multipleBITI returned −29.6% while −1 times IBIT's move would have been −39.2%IBIT +39.2% ×−1 implies−39.2%BITI returned−29.6%9.6 pts ahead of its stated multipleBITI returned −29.6% while −1 times IBIT's move would have been −39.2%IBIT +39.2% ×−1 implies−39.2%BITI returned−29.6%

BITI returned −29.6% while −1 times IBIT's move would have been −39.2%

BTCZ · 3 months to Sep 30, 202624.8 pts ahead of its stated multiple
24.8 pts ahead of its stated multipleBTCZ returned −53.7% while −2 times IBIT's move would have been −78.5%IBIT +39.2% ×−2 implies−78.5%BTCZ returned−53.7%24.8 pts ahead of its stated multipleBTCZ returned −53.7% while −2 times IBIT's move would have been −78.5%IBIT +39.2% ×−2 implies−78.5%BTCZ returned−53.7%

BTCZ returned −53.7% while −2 times IBIT's move would have been −78.5%

ETFIQ Decay Resistance Score · BITI scores higherDid it keep up with its own daily multiple, compounded day by day?
0.4, the lowest in this set99.6, the highest

A percentile among the 125 inverse ETFs over three months. It is a position in a set, not a rating, and neither end of it is a recommendation. All leveraged ETFs ranked by it → How it is computed →

Performance, window by window

Total returnMultiple would giveDifference
WindowBITIBTCZBITIBTCZBITIBTCZ
1 month−6.4%−14.5%−6.0%−12.0%−0.5 pts−2.6 pts
3 months−29.6%−53.7%−39.2%−78.5%+9.6 pts+24.8 pts
6 months−21.5%−45.8%−22.5%−45.0%+1.0 pts−0.7 pts
1 year+19.6%+4.1%+27.2%+54.3%−7.6 pts−50.3 pts
Since launch
BITI Jan 2024 · BTCZ Jul 2024
−61.8%−88.4%−77.8%−89.8%+16.0 pts+1.4 pts

BITI and BTCZ over each window. Every figure is an ETFIQ calculation with distributions reinvested. Source: ETFIQ. Open the live comparison on ETFIQ →

On the same fields

BITI
ProShares Short Bitcoin ETF · Aims to return 1 times the opposite of the daily move of bitcoin (IBIT)
BTCZ
T-REX 2X INVERSE BITCOIN DAILY TARGET ETF · Aims to return twice the opposite of the daily move of bitcoin (IBIT)
Issuer ProShares T-REX
Sets out to return -1x -2x
Underlying asset IBIT IBIT
Segment crypto crypto
Fund returned, 3 months or since launch −29.6% −53.7%
Underlying returned, over that window +39.2% +39.2%
What the stated multiple implies, over that window −39.2% −78.5%
Difference from stated, over that window +9.6 pts +24.8 pts
Fund returned, 1 year or since launch +19.6% +4.1%
Difference from stated, over that window −7.6 pts −50.3 pts
Underlying volatility 38% 38%
Difference over the days both have traded no shared window +24.8 pts
Expense ratio 1.02% 0.95%
Launched Jun 21, 2022 Jul 10, 2024
Net assets $81m $16m

BITI and BTCZ on the same fields, as of Sep 30, 2026. Source: ETFIQ.

BITI in plain words

Three months to Sep 30, 2026: BITI returned −29.6% where its own daily promise gave −30.9%, 1.2 points over. Read the multiple against the whole window instead and −1 times IBIT's 39.2% implies −39.2%, which makes BITI look 9.6 points over. 8.4 of that is daily compounding, which happens to any −1 times fund over the same path, and the rest is the fund. BITI aims to return -1 times IBIT's move each day, then resets. Over one day it does that. Over longer, the daily results compound, so the total is not -1 times the period's move: in a market that falls and comes back it is reliably less, and in a steady run it can be more. IBIT moved at 38% annualized over that window. That is what decides how far the two figures separate: the same fund on a calm underlying and a violent one is a different product.

BTCZ in plain words

Three months to Sep 30, 2026: BTCZ returned −53.7% where its own daily promise gave −54.2%, 0.5 points over. Read the multiple against the whole window instead and −2 times IBIT's 39.2% implies −78.5%, which makes BTCZ look 24.8 points over. 24.3 of that is daily compounding, which happens to any −2 times fund over the same path, and the rest is the fund. BTCZ aims to return -2 times IBIT's move each day, then resets. Over longer, the daily results compound, so the total is not -2 times the period's move: in a market that falls and comes back it is reliably less, and in a steady run it can be more.

Questions people ask

Which came closer to its stated multiple, BITI or BTCZ?
Over the window to Sep 30, 2026, BITI finished 9.6 points from what its multiple implies and BTCZ finished 24.8 points from its own, so BITI came closer. Neither figure predicts the next window: it depends on how much the underlying moves about.
Are BITI and BTCZ levered on the same thing?
Yes. Both are levered on bitcoin, BITI at -1 times and BTCZ at -2 times the daily move.
Which one decays faster, BITI or BTCZ?
Decay follows how much the underlying moves about. Over this window BITI’s moved at 38% annualized and BTCZ’s at 38%, so BITI has the rougher ride and, at the same multiple, loses more to compounding.
Can I hold BITI or BTCZ for a year?
Both reset every day, so the multiple in the name applies to a single day and the daily results compound. Over a year the total is not the multiple times the year’s move, and in a market that falls and comes back it is reliably less. ETFIQ makes no recommendation either way.
Which is cheaper, BITI or BTCZ?
BITI charges 1.02% a year and BTCZ charges 0.95%, so BTCZ is cheaper. Fees come from each fund's prospectus.
Cite this page

ETFIQ, BITI against BTCZ, data as of Sep 30, 2026. https://etfiq.com/compare/leverage/biti-vs-btcz

Open data

Free to use with attribution. Every figure is calculated from a named public source; the method is at etfiq.com/methodology.