On its first day of trading, Facebook Inc.'s stock closed barely above its public offering price. It gained 23 cents, or 0.6 percent, to close at $38.23. Since then, the stock price fell for 10 weeks and increased for seven.

Facebook's stock started the week with a decline. It lost 10 cents, or 0.45 percent, to $21.90 in morning trading Monday.

Here's are the closing prices each week since the first day of trading on May 18:

— May 25: Closed at $31.91, down 17 percent for the week.

— June 1: Closed at $27.72, down 13 percent for the week.

— June 8: Closed at $27.10, down 2.2 percent for the week.

— June 15: Closed at $30.01, up 11 percent for the week.

— June 22: Closed at $33.05, up 10 percent for the week.

— June 29: Closed at $31.09, down 5.9 percent for the week.

— July 6: Closed at $31.73, up 2.1 percent for the week.

— July 13: Closed at $30.72, down 3.2 percent for the week.

— July 20: Closed at $28.76, down 6.4 percent for the week.

— July 27: Closed at $23.71, down 18 percent for the week.

— Aug. 3: Closed at $21.09, down 11 percent for the week.

— Aug. 10: Closed at $21.81, up 3.4 percent for the week.

— Aug. 17: Closed at $19.05, down 13 percent for the week.

— Aug. 24: Closed at $19.41, up 1.9 percent for the week.

— Aug. 31: Closed at $18.06, down 7 percent for the week.

— Sept. 7: Closed at $18.98, up 5.1 percent for the week

— Sept. 14: Closed at $22, up 16 percent for the week