Market Data Brief - 2026-09-20

This brief summarizes the latest records available in Vox’s local investdatar caches. Dates shown in source details are data dates, not publication promises.

Source cutoff: 2026-09-20 UTC. Historical reconstruction uses finalized local observations on or before 2026-09-20 UTC; it is not a point-in-time data vintage.

RSS Updates

RSS publication window: after 2026-09-19 through 2026-09-20 UTC.

atlfed_gdpnow

no items published after 2026-09-19 through 2026-09-20

sec_press_releases

no items published after 2026-09-19 through 2026-09-20

fed_press_all

no items published after 2026-09-19 through 2026-09-20

cftc_press_releases

no items published after 2026-09-19 through 2026-09-20

FRED Shock Summary

The supplied FRED observations show no day-over-day change in the three administered or target policy-rate series, alongside substantial increases in both uncertainty measures. IORB remained at 3.90% from September 19 to September 20, while the federal funds target range remained 3.75%-4.00%. Thus, within this two-observation comparison, the policy-rate configuration was unchanged: IORB stood 15 basis points above the lower bound and 10 basis points below the upper bound of the target range.

The notable movement is instead in the uncertainty indexes. The U.S. Economic Policy Uncertainty Index increased from 155.89 to 184.99, a rise of 29.10 index points, or approximately 18.7%. The Equity Market-related Economic Uncertainty Index rose much more sharply, from 15.16 to 50.24, an increase of 35.08 points, or approximately 231.4%. These are large one-day changes in the supplied observations, especially for the equity-market-related measure.

The contrast between the two groups of series is therefore clear but should not be interpreted causally from these data alone. The interest-rate observations indicate stability in the reported policy-rate settings, whereas the uncertainty indexes indicate a marked increase in measured uncertainty on September 20. The relatively larger proportional increase in WLEMUINDXD also suggests that the day’s change was particularly pronounced in the equity-market-related uncertainty measure compared with the broader U.S. policy-uncertainty measure. This is a comparison of index movements, not evidence about what caused them or whether the increase persisted beyond the reported date.

Taken strictly as a deterministic snapshot, the September 20 data describe an unchanged policy-rate structure coexisting with materially higher uncertainty readings. Because only the latest and immediately preceding observations are supplied, they do not establish a trend, regime change, or relationship between policy rates and uncertainty. Additional observations would be required to determine whether the uncertainty increases were transient or persistent.

Update details:

Interest Rate on Reserve Balances (IORB Rate) [IORB, unit=Percent]: latest 3.90 on 2026-09-20; previous 3.90 on 2026-09-19.
Federal Funds Target Range - Lower Limit [DFEDTARL, unit=Percent]: latest 3.75 on 2026-09-20; previous 3.75 on 2026-09-19.
Federal Funds Target Range - Upper Limit [DFEDTARU, unit=Percent]: latest 4.00 on 2026-09-20; previous 4.00 on 2026-09-19.
Economic Policy Uncertainty Index for United States [USEPUINDXD, unit=Index]: latest 184.99 on 2026-09-20; previous 155.89 on 2026-09-19.
Equity Market-related Economic Uncertainty Index [WLEMUINDXD, unit=Index]: latest 50.24 on 2026-09-20; previous 15.16 on 2026-09-19.

Yahoo Shock Summary

The supplied cross-asset observations show very small movements in Bitcoin and the three major currency pairs, while Ethereum registered the largest percentage change in the set. BTC-USD closed at 81,142.61 on September 20, down 91.07, or 0.11%, from 81,233.68 on September 19. ETH-USD moved in the opposite direction, closing at 2,643.00 versus 2,631.96, an increase of 11.03, or 0.42%. The two crypto assets therefore diverged modestly over the reported interval rather than moving uniformly: Bitcoin was nearly flat with a slight decline, while Ethereum posted a small gain.

The foreign-exchange observations were even more compressed. EUR/USD was reported at approximately 1.15 and declined 0.09% relative to its September 18 comparison close. GBP/USD was approximately 1.34 and increased 0.12%. USD/JPY declined from 157.10 to 157.05, a 0.05-yen movement corresponding to -0.03%. Because the displayed EUR/USD and GBP/USD levels are rounded to two decimal places, their reported absolute changes appear as 0.00 even though the supplied percentage changes show small underlying movements. The percentage figures therefore contain useful precision that is not visible in the rounded headline levels.

Directionally, the FX data are mixed rather than signaling a uniform move of the U.S. dollar against the three currencies represented. A lower EUR/USD corresponds to a marginally weaker euro against the dollar over the comparison interval; a higher GBP/USD corresponds to a marginally stronger pound; and a lower USD/JPY corresponds to a marginally stronger yen against the dollar. All three percentage changes are only around one tenth of one percent or less in absolute magnitude, so the supplied snapshot is characterized more by limited FX movement than by broad directional alignment.

Across the entire five-instrument set, ETH-USD’s 0.42% increase has the largest absolute percentage move, followed by GBP/USD at +0.12%, BTC-USD at -0.11%, EUR/USD at -0.09%, and USD/JPY at -0.03%. This ordering is descriptive only and does not imply comparable volatility or economic significance across fundamentally different asset classes. The crypto observations also use September 19 as their previous close, whereas the FX observations use September 18, so their percentage changes do not represent identical elapsed intervals. Overall, the supplied data depict limited cross-asset movement with modest crypto divergence and narrowly mixed currency changes; they do not by themselves establish a broader market trend or provide evidence for the causes of these moves.