How-to · ETFs

ProShares UltraPro Short Dow30 (SDOW) Exit Rules

SDOW exit rules work best written on the index and settled before the buy: where the Dow proves the trade wrong, how many sessions it gets, and what happens if the open skips past the stop.

AI-assisted, reviewed by the TrueMoneyTrading human editor: James T. → 6 min read Published

Short answer

Write SDOW exit rules on the Dow before you buy: a stop about half an ATR above the support it broke, sized so a hit costs a set dollar loss; a time stop a few sessions out; a nightly check of the fund against -3x the Dow's move since entry; a rule for a gap at the open; and a first target where half the position comes off.

Sell 450 shares of SDOW if the Dow trades above 1,005. That line goes on paper before the buy ticket does, along with a last day, a profit level and an instruction for a bad open, because SDOW exit rules drafted after the fund has started moving tend to bend toward whatever the position happens to be doing. Every number below is hypothetical. The index sits near 1,000 so nothing resembles a real Dow quote.

ProShares states the fund’s objective as three times the inverse of the daily performance of the Dow Jones Industrial Average, before fees and expenses, and as of November 2026 its fund page gives an inception date of February 9, 2010. The word “daily” shapes every rule here. The fund resets each evening. So a price on the SDOW chart means one thing on Monday and something else by Thursday.

Where should the stop go?

On the Dow. The trade is a bet on the index, so the stop marks the index level that proves the bet wrong.

The usual trigger is a downside breakout: the Dow closes below a support level it has held more than once. If it climbs back above that level, the breakdown has failed. Put the stop just past it. Leave room for ordinary noise.

  1. Mark the support level the Dow broke. Here, 1,000.
  2. Read the Dow’s average true range on the daily chart. Here, 10 points.
  3. Add half an ATR to the support level. The stop is 1,005.
  4. Measure the gap from the entry close to the stop as a percentage and triple it. That is roughly the fund’s loss if the stop is hit the same day.
  5. Divide the dollar loss you accept by that percentage. The answer is the position.

Half an ATR is a choice. A full ATR gives the trade more room and, for the same $450, a smaller position. Stop placement is the usual job for ATR among the swing trading indicators, and the position size calculator does step 5 for any loss limit.

Set a price alert on the index at 1,005. When it fires, sell the fund. A resting order on SDOW at $21.00 matches the Dow stop on entry day and on no other.

How far has the fund drifted from -3x since you bought?

Every evening, run two sums. Take the Dow’s change from the entry close and multiply it by -3. Then take the fund’s actual change from your entry price. The difference is drift, which is what the nightly resets have done to the position by themselves, and on a path that swings back and forth it grows with each reversal. ProShares’ SDOW page says as much in general terms, as of November 2026: for any period other than a day, the return can land above or below the daily target, and higher index volatility and longer holding periods tend to widen the difference.

After four sessions the Dow sits a touch below the entry. Three times that move would have paid 0.78%. The position made 0.07%. Resets account for the difference.

Write a drift limit into the plan, such as one percentage point, and exit when the fund trails by more. The figure is yours to pick. Look at session 1, too: the Dow closed 0.15 points under the stop, and any intraday print above 1,005 would have ended the trade, which is the stop working as designed.

Then reprice the fund-side stop. The formula is short: fund close x (1 - 3 x the distance from the Dow’s close to the Dow stop, as a percentage of the Dow’s close). It gives a new number each evening, even when the index stop has not moved.

When does the time stop end the trade?

A breakdown should follow through quickly. If the Dow has not followed through within a few sessions, the evidence that started the trade is getting older, and each extra session adds another reset. Sideways markets are where a -3x fund bleeds, as a week of SDOW resets worked day by day shows.

So name the last session in the plan. Here it is the close of the fourth session after entry.

If the trade is working when the clock runs out, close it anyway. A fresh entry can follow, with a new stop, a new size and a new last day.

What if the Dow gaps through the stop?

An alert at 1,005 cannot fill at 1,005 when the Dow opens at 1,020.

Two rules handle it. Before holding overnight, run the gap sum for an open two or three ATRs beyond the stop, and cut the position if the answer breaks your limit. Nights with a Federal Reserve decision or earnings from the priciest Dow members deserve a bigger gap in that sum.

And decide now what happens at a bad open. If the Dow opens past the stop, the exit condition has been met, so sell the fund in the first minutes with a limit order at or just under the bid. Waiting for a bounce means holding a trade the plan has already closed.

How do you scale out of a winner?

Winning days enlarge a -3x position. After each Dow decline the fund resets with more short exposure, so a position that is up carries more dollars at risk than the $450 it was sized for, and taking part of it off at a first target pulls the risk back toward the plan.

  1. First target: a Dow close at or below 970, two ATRs under the entry close. Sell half.
  2. Move the stop on the rest to 990, the entry close.
  3. Second target: 950, four ATRs under entry. The time stop still applies if 950 never comes.

A full exit plan, entry to time stop

The fund-side stop slipped from $21.00 to $20.93 after session 1, though the Dow stop never moved, so an order left at $21.00 would have been sitting in the wrong place. The Dow never reached 950. It climbed about 14 points off its lowest close before the time stop closed the trade, and the half sold at the first target banked most of the gain.

The same plan carries over to the other -3x index funds on the inverse ETF list, with the stop, the ATR and the drift check all read off each fund’s own index.

Questions traders ask next

Should the stop-loss go on SDOW's price or on the Dow?

On the Dow. The trade is a view on the index, and the index level that proves it wrong stays put. The fund price that matches that level shifts every evening as the fund resets. Watch the Dow with an alert and sell the fund when it fires. If you keep a resting order on the fund as well, reprice it after each close.

Does a trailing stop work on SDOW?

A trailing stop on the fund follows a price the daily resets keep reshaping, so after a few choppy sessions it can trigger on drift alone. Trailing the Dow is cleaner: lower the index stop as the Dow sets new closing lows, for example to one ATR above the latest low, and convert that level to a fund price each evening.

What should you do if SDOW is up when the time stop arrives?

Sell, then decide afresh. If the Dow still sits below the broken support and the setup still looks right, a new entry gets a new stop from the latest ATR, a new size from today's price and a new time stop. Rolling the old trade forward without those steps leaves a position sized for a Dow level that is already behind you.