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UDOW tax-loss harvesting alternatives

ProShares UltraPro Dow30 (ProShares) tracks Dow Jones Industrial Average. If you hold UDOW at a loss, these ETFs track a different index, which generally makes them less likely to be considered “substantially identical” — while still moving closely with UDOW during the 31-day wait.

Held fund	Index tracked	Issuer	Expense ratio	AUM	Holdings	Category
UDOW3x leveraged ProShares UltraPro Dow30	Dow Jones Industrial Average	ProShares	0.94%	$883.98M	42	Leveraged / inverse

Sources: issuer fund page · public fund profile. Fund data as of 2026-10-16.

Leveraged / inverse fund. These funds reset daily and can behave very differently from the index over weeks. Two leveraged funds on the same index (e.g. a 2x and a 3x, or two 3x funds from different issuers) may still be viewed by some as substantially identical — there is no IRS ruling either way. The alternatives below are limited to funds on a different index with similar leverage in the same direction.

UDOW wash sale alternatives (different index)

ETF	Index tracked	Issuer	Expense ratio	AUM	1-yr correlation	Holdings overlap	Notes
SSO2x leveraged ProShares Ultra S&P 500	S&P 500	ProShares	0.84%	$9.20B	0.832	n/a	different indexdifferent leverage
UPRO3x leveraged ProShares UltraPro S&P500	S&P 500	ProShares	0.88%	$5.70B	0.829	n/a	different index
SPXL3x leveraged Direxion Daily S&P 500 Bull 3X ETF	S&P 500	Direxion	0.84%	$7.34B	0.829	n/a	different index
UWM2x leveraged ProShares Ultra Russell2000	Russell 2000	ProShares	0.95%	$218.53M	0.788	n/a	different indexloose matchdifferent leverage
TNA3x leveraged Direxion Daily Small Cap Bull 3X ETF	Russell 2000	Direxion	1.05%	$1.30B	0.788	n/a	different indexloose match
FAS3x leveraged Direxion Daily Financial Bull 3X ETF	S&P Financial Select Sector	Direxion	0.88%	$2.06B	0.764	n/a	different indexloose match
TQQQ3x leveraged ProShares UltraPro QQQ	NASDAQ 100 Index	ProShares	0.78%	$38.96B	0.630	n/a	different indexloose match
QLD2x leveraged ProShares Ultra QQQ	NASDAQ 100 Index	ProShares	0.89%	$15.25B	0.628	n/a	different indexloose matchdifferent leverage

Sorted by 1-year correlation of daily total returns with UDOW (through 2026-10-16). Holdings overlap = sum of the smaller weight of each common stock, from issuer holdings files; “n/a” where the issuer does not offer a free download or for bond/international/commodity funds. Hover a value for its as-of dates.

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Avoid as a replacement: same index as UDOW

These track the same index (Dow Jones Industrial Average). Buying one of them within the window is the classic “substantially identical” risk.

ETF	Index tracked	Issuer	Expense ratio	AUM	1-yr correlation	Holdings overlap	Notes
DDM2x leveraged ProShares Ultra Dow30	Dow Jones Industrial Average	ProShares	0.95%	$513.03M	0.999	n/a	same index — avoid

30-day wash-sale calendar for UDOW

Sell (trade) date:

The window is 30 calendar days before and after the sale (61 days total, IRC §1091(a)). Buying the replacement fund right away is the point of a swap; the dates above are about buying back the fund you sold, or anything substantially identical to it.

Before you swap

Turn off dividend reinvestment for UDOW in every account (including IRAs) for the window — a reinvested dividend is a purchase.
Check automatic investments, a spouse’s accounts, and any UDOW bought in the 30 days before the sale.
Your broker generally only flags wash sales for the identical security in the same account. You are responsible for the rest.
Read how wash sales work and the FAQ, then confirm your plan with a tax professional.