NANR, the State Street SPDR S&P North American Natural Resources ETF, has seen unusual turbulence in its lending market this week — notable for a fund that rarely attracts speculative attention.
The most striking development is in short interest itself, which has whipsawed dramatically. The week-on-week reading shows a 242% surge in shares short, yet the absolute level remains trivial at just 0.16% of free float. What that volatility actually reflects is the ETF creation-redemption mechanism at work — shares short in an ETF context often track authorised participant activity rather than directional bets. The daily share count swung from roughly 5,300 shares short in mid-July to over 21,000 last Monday before pulling back to 18,000. This is noise, not conviction.
The more interesting signal sits in the borrow market. Availability has tightened meaningfully over the past week — dropping from well above 100% to 62.6% today, down 63% on the week. That puts the lending pool in genuinely tight territory: for every share currently borrowed, fewer than two-thirds of an additional share remains available. The 52-week low in availability hit 5.6% back in June, so the current level is loose by that standard — but the direction of travel matters. Cost to borrow has also been choppy, running between 0.9% and 4.2% over the past six weeks before settling at 2.35% today, down sharply from the 4.17% peak seen on July 14. Taken together, the borrow market looks moderately tight but not stressed — availability is tightening while the cost to borrow is easing, a combination that suggests short positioning is being covered or rotated rather than pressed.
The ORTEX short score sits at 47.0, essentially the midpoint of the 0–100 scale and unchanged over the past two weeks. That is consistent with an ETF where directional short pressure is structurally limited. Options activity is effectively absent — the put/call ratio has read zero for every session in the past 30 days, and the 52-week high for the PCR is just 0.06. Investors in NANR are not using listed options to hedge or express a view, which is typical for a fund of this size and liquidity profile.
On the price side, NANR has drifted modestly higher — up 1.9% on Tuesday, 1.6% over the week, and 1.5% over the past month, closing at $79.20. The fund's last dividend was $0.71 per unit. Valuation data is stale and not meaningful for an index vehicle. There are no upcoming earnings events, as expected for a passive fund. The natural resources sector backdrop — commodity prices, energy names, and materials — remains the primary driver of NAV, and any macro catalyst around inflation or energy supply is the real variable to watch from here.
The next meaningful read on the lending market will be whether availability continues to tighten back toward the sub-30% levels seen in early June, or whether the recent easing in borrow cost signals that the brief demand spike for shares to borrow has passed.
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