Nuveen S&P 500 Dynamic Overwrite Fund (SPXX)
SPXX moved a median of 0.00% 30 minutes after news, and -0.02% by the close. How SPXX actually reacts to news — the realized, point-in-time move the market made, measured across 56 labeled events over the last three years with zero look-ahead.
SPXX’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.01% | 29% | 48 |
| 30-min | 0.00% | 43% | 56 |
| 60-min | +0.03% | 54% | 56 |
| to close | -0.02% | 45% | 56 |
| Middle 50% of SPXX reactions | -0.28% to +0.16% |
|---|---|
| Median reaction (30-min) | 0.00% |
| Measured reactions | 56 |
Half of all Nuveen S&P 500 Dynamic Overwrite Fund news events land between -0.28% and +0.16% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
Email me when SPXX moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to SPXX's baseline. Nothing else.
Recent SPXX events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| Form N-CSRS Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | -0.39% | +0.18% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.60% | -0.26% | |
| Form N-PX Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.26% | -0.73% | |
| Form POS EX Nuveen S&P 500 Dynamic | SEC filing · Form POS | SEC EDGAR | -0.08% | -0.58% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Mar 31 | SEC filing · Form NPORT-P | SEC EDGAR | -0.27% | +0.44% | |
| Nuveen Covered Call Closed-End Funds Announce Completion of Mergers | Press release | Business Wire | -0.22% | -1.80% | |
| Form N-CEN Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | -0.12% | -0.30% | |
| Form N-CSR Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | -0.06% | -0.29% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.00% | -0.78% | |
| Form EFFECT Nuveen S&P 500 Dynamic | SEC filing · Form EFFECT | SEC EDGAR | +0.00% | -0.11% | |
| Form N-14 8C/A Nuveen S&P 500 Dynamic | SEC filing · Form N-14 | SEC EDGAR | +0.62% | +0.67% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Sep 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.34% | +0.79% | |
| Form N-14 8C Nuveen S&P 500 Dynamic | SEC filing · Form N-14 | SEC EDGAR | -0.12% | +0.52% | |
| Form N-CSRS Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | -0.03% | -0.03% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form NPORT-P | SEC EDGAR | +0.18% | +0.56% | |
| Form N-PX Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.55% | -0.44% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Mar 31 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.41% | |
| Form EFFECT Nuveen S&P 500 Dynamic | SEC filing · Form EFFECT | SEC EDGAR | +0.41% | -0.52% | |
| Form N-2/A Nuveen S&P 500 Dynamic | SEC filing · Form N-2 | SEC EDGAR | -0.03% | +0.18% | |
| Form N-CEN Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | -0.18% | +0.00% | |
| Form N-CSR Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | -0.03% | +0.26% | |
| Form DEF 14A Nuveen S&P 500 Dynamic For: Apr 17 | SEC filing · Form DEF | SEC EDGAR | +0.49% | +1.07% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form NPORT-P | SEC EDGAR | -0.03% | +0.47% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Sep 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.29% | +0.11% | |
| Form N-CSRS Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-CSRS | SEC EDGAR | — | -0.01% | |
| Form N-PX Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | +0.00% | -0.48% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form NPORT-P | SEC EDGAR | -0.12% | +0.42% | |
| Form N-2 Nuveen S&P 500 Dynamic | SEC filing · Form N-2 | SEC EDGAR | +0.21% | +0.21% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Mar 31 | SEC filing · Form NPORT-P | SEC EDGAR | +0.32% | +0.00% | |
| Form N-PX/A Nuveen S&P 500 Dynamic For: Jun 30 | SEC filing · Form N-PX | SEC EDGAR | -0.30% | -0.25% | |
| Form N-CEN Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CEN | SEC EDGAR | — | -1.11% | |
| Form N-CSR Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form N-CSR | SEC EDGAR | +0.00% | -0.32% | |
| Form 8-K Nuveen S&P 500 Dynamic For: Mar 06 | SEC filing · Form 8-K | SEC EDGAR | -0.06% | -0.06% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Dec 31 | SEC filing · Form NPORT-P | SEC EDGAR | -0.03% | -0.23% | |
| Form DEF 14A Nuveen S&P 500 Dynamic For: Apr 12 | SEC filing · Form DEF | SEC EDGAR | +0.04% | +0.04% | |
| Form NPORT-P Nuveen S&P 500 Dynamic For: Sep 30 | SEC filing · Form NPORT-P | SEC EDGAR | — | -0.27% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the SPXX section they belong to.
Where else SPXX is measured.
SPXX earnings → · Analyst actions → · SEC filings →
Other Financial Services names, measured the same way
| Ticker | Events | Median 30-min | % positive |
|---|---|---|---|
| Pimco Global StocksPlus & Income Fund Common Shares of Beneficial Interest (PGP) | 56 | 0.00% | 46% |
| PIMCO California Municipal Income Fund III Common Shares of Beneficial Interest (PZC) | 56 | 0.00% | 29% |
| Western Asset Bond Fund Share of Beneficial Interest (WEA) | 56 | 0.00% | 37% |
| abrdn Total Dynamic Dividend Fund Common Shares of Beneficial Interest (AOD) | 55 | -0.02% | 33% |
Same sector, same measurement: percent move vs. the price at the news timestamp, read at 30 minutes. Sample sizes differ, so the medians are comparable but the confidence behind them is not.
All Financial Services names, measured the same way →
Every ticker we measure the same way24
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Every name we’ve measured, in one place.
How the numbers are made.
How is Nuveen S&P 500 Dynamic Overwrite Fund's median reaction calculated?
Every labeled SPXX news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 56 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 43% of SPXX's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does SPXX's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.