The takeaway
SonicShares Global Shipping ETF shows a pronounced seasonal pattern over 5 years of data — strongest in May (+7.9%) and softest in June (−5.1%).
Right now
In July, the fund has risen 75% of years, averaging +5.6%, about +3.5 pts better than the S&P 500.
The full picture
SonicShares Global Shipping ETF's most dependable month has been May, higher in 3 of 4 years; June has been its least reliable, up just 25% of the time.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Win rate % | ||||||||||||
| Median return % | ||||||||||||
| 2025 | ||||||||||||
| 2024 | ||||||||||||
| 2023 | ||||||||||||
| 2022 | ||||||||||||
| 2021 | — | — | — | — | — | — | — |
Month by month
The fund's clearest edge over the S&P 500 lands in May (+7.2 pts); it has trailed the market most in June (−5.4 pts).
“vs S&P” is SonicShares Global Shipping ETF’s average for a month minus the S&P 500’s average for that same month — isolating SonicShares Global Shipping ETF’s own seasonal edge from broad market drift.
Reality check
Over the last 4 years, May has closed higher 75% of the time versus 75% across the last 5 years — the pattern is holding.
Figures are the typical (median) May return and how often it rose — the last 4 years versus the last 5(the heatmap’s default window). This verdict stays anchored to that 5-year window even if you zoom the chart, so it never disagrees with the badges above.
In plain English
This is a fund you can almost set a calendar by, and May is the anchor — it has closed higher in 3 of 4 Mays, the steadiest beat on its year.
The strength looks broad-based rather than freakish: its average (+7.9%) and median (+11.9%) sit close together, so no single blow-out year is flattering the figure. That reliability comes with real swings, mind — even May ranges by 10.8% from year to year, so any single year can land far from the average. Better still, that strength is the fund's own and not just a buoyant market — May has outpaced the S&P 500 by +7.2 points on average. Few peers keep such company in May — the typical stock clears it just 55% of the time.
It doesn't stand entirely alone — July, September, and October have leaned firm as well, if less emphatically. On the other side of the ledger, June has been the soft spot — the weakest of 3 months that average a loss (−5.1%), and the edge isn't year-round — the fund has trailed the S&P 500 in June, October, and November. Its roughest month on record was a −19.8% June in 2022 — a reminder of how hard even a seasonal name can fall.
For a fund this dependable in May, the sharper question is the rest of the year — outside its strong stretch, the calendar gives far less to lean on. With a short 5-year record, the signal is best held loosely.
Short answers on the fund's best month (May), its worst (June), and whether it really trades seasonally.
Yes, to a pronounced degree. Since 2021 its best month (May, +7.9%) has run well ahead of its worst (June, −5.1%) — the heatmap above shows how steady that gap has been year to year.
May has been the strongest, averaging +7.9% and closing higher in 3 of 4 years since 2021.
It's the weakest, averaging −5.1% — historically a soft spot, though it still varies from year to year.
Explore
These names have the strongest July track records on record — a starting point for comparison.
Before you trade