The S&P/ASX 200 Index (ASX: XJO) is having a fairly quiet start to the week as investors wait for US markets to reopen.
At the time of writing, the ASX 200 is down 0.09% to 8,821 points.
At the latest check, 106 ASX 200 shares are trading higher, 81 are falling, and 13 are unchanged.
However, some of the stocks going backwards are among the larger names on the market, which is why the index is still stuck in the red.
Here's what is weighing on the ASX 200 today.

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Waiting on Wall Street
Aussie investors are still waiting for the US markets to reopen after the Juneteenth holiday kept Wall Street closed on Friday night.
This has left the ASX 200 trading mostly around local company news and the latest overseas developments.
The Middle East uncertainty is still one of the main issues being watched by markets. Oil prices have been moving around as traders react to tensions involving Iran, the US, and the Strait of Hormuz.
Currently, Brent crude is down 1.5% to US$79.38 a barrel, while WTI crude is down 2.16% to US$75.66 a barrel.
Our local market has avoided a heavier fall so far. But with Wall Street back tonight, investors may be reluctant to take on too much risk before seeing how US markets react.
Large names weigh on the index
While more stocks are rising than falling, the ASX 200 is being held back by weakness in some of its larger companies.
BHP Group Ltd (ASX: BHP) shares are down 0.66% to $60.995, while Rio Tinto Ltd (ASX: RIO) shares are 0.24% lower at $176.94.
Fortescue Ltd (ASX: FMG) shares are also in the red, falling 0.81% to $19.59.
Healthcare is another big drag. CSL Ltd (ASX: CSL) shares are down 3.92% to $111.76, which is a sizeable fall for one of the biggest stocks on the market.
WiseTech Global Ltd (ASX: WTC) is under even more pressure. Its shares are down around 15.27% to $31.25 after media reports that the AFP is investigating chairman Richard White.
Banks are helping limit the damage
The big banks are doing some of the heavy lifting today.
Commonwealth Bank of Australia (ASX: CBA) shares are up 0.90% to $163.86, while Westpac Banking Corp(ASX: WBC) shares are slightly higher at $35.03.
National Australia Bank Ltd (ASX: NAB) shares are up 0.09% to $37.775, and ANZ Group Holdings Ltd (ASX: ANZ) shares are 0.47% higher at $35.195.
There are also gains from QBE Insurance Group Ltd (ASX: QBE), which is up 1.52% to $24.425, and Aristocrat Leisure Ltd (ASX: ALL), which is rising 2.27% to $56.195.