WISA stock remains a speculative Datavault AI holding

WISA Technologies stock closed at USD 0.15 on Nasdaq on September 18, 2026, while the former WiSA business is now tied to Datavault AI. The shares were down 76.4 percent from USD 0.6521 at the beginning of 2026, according to the dated market context reported by Ad-hoc-News on September 21, 2026.

Former WiSA equity trades near USD 0.15

The September 18 closing price of USD 0.15 gives the stock a market capitalization of USD 11.22 million, based on the same dated market snapshot. That comparison is material: the share price has fallen from USD 0.6521 at the start of 2026 to USD 0.15, a decline of 76.4 percent.

The market data identify Nasdaq as the relevant US trading venue for the quotation. The available September 18 snapshot also places the equity in the small-cap and highly speculative segment, where changes in corporate structure can matter as much as operating results.

Legal scrutiny adds a clear risk factor

The current risk angle is linked to legal scrutiny surrounding Datavault AI and allegations concerning its business prospects. Ad-hoc-News reported this context on September 21, 2026, while also describing the former WiSA business as part of the current equity story.

The numerical picture leaves little room for a neutral reading. A market capitalization of USD 11.22 million and a 76.4 percent decline from the 2026 opening price show that the market has repriced the security sharply within the year, even though the latest available closing quote was only USD 0.15.

USD 0.15 remains the key reference

For the primary Nasdaq quotation, the reference price is USD 0.15 as of September 18, 2026. The same date anchors the comparison with the USD 0.6521 opening level for 2026 and the USD 11.22 million market capitalization.

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