UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

SCHEDULE 13D
Under the Securities Exchange Act of 1934
(Amendment No. ________)*

_______________P.F. Chang's China Bistro, Inc.___________

(Name of Issuer)

____________________COMMON STOCK___________________

(Title of Class of Securities)

_______________________________69333Y108___________________________

(CUSIP Number)

JAMES WEAVER
OMNI PARTNERS LLP
2ND FLOOR SALTERS HALL
4 FORE STREET
LONDON
EC2Y5DB
0207 847 7445

(Name, Address and Telephone Number of Person
Authorized to Receive Notices and Communications)

____________________________21 JUNE 2012___________________________
(Date of Event which Requires Filing of this Statement)

If the filing person has previously filed a statement on Schedule 13G to report the acquisition that is the subject of this Schedule 13D, and is filing this schedule because of 240.13d-1(e), 240.13d-1(f) or 240.13d-1(g), check the following box. [ ]

Note: Schedules filed in paper format shall include a signed original and five copies of the schedule, including all exhibits. See ?240.13d-7 for other parties to whom copies are to be sent.

*The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be filed for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

Persons who respond to the collection of information contained in this form arenot required to respond unless the form displays a currently valid OMB control number.

SEC 1746 (3-06)

CUSIP No. 69333Y108 Schedule 13D Page 2 of 4 Pages

1. Names of Reporting Persons.
I.R.S. Identification Nos. of above persons (entities only).

TIRESIAS CAPITAL LIMITED........................................

2. Check the Appropriate Box if a Member of a Group:
(a) x.......................................

(b) Not applicable.......................................

3. SEC Use Only ................................................

4. Source of Funds .........00- FUNDS OF INVESTMENT ADVISORY CLIENTS
5. Check if Disclosure of Legal Proceedings Is Required Pursuant to
Items 2(d) or 2(e): .....Not applicable.............

6. Citizenship or Place of Organization ..CAYMAN ISLANDS...........

Number of 7. Sole Voting Power...603,539.....................
Shares Bene-
ficially owned 8. Shared Voting Power....0..........................
by Reporting 9. Sole Dispositive Power ......603,539............
Person With
 10. Shared Dispositive Power .......0................

11. Aggregate Amount Beneficially Owned by Each Reporting Person
..603,539............

12. Check if the Aggregate Amount in Row (11) Excludes Certain Shares
.....[ ]................

13. Percent of Class Represented by Amount in Row (11)...2.84%......

14. Type of Reporting Person...[IA]................

Item 1. Security and Issuer

The class of equities to which the statement relates is the common stock
 of PF Chang's China Bistro, Inc, a US corporation with principal
offices at 7676 East Pinnacle Peak Road, Scottsdale, AZ 85255, United
States.

Item 2. Identity and Background

The statement is filed by Tiresias Capital Limited of PO BOX 309, Ugland
House, South Church Street, George Town, Grand Cayman, Cayman Islands.
Tiresias Capital Limited is an Investment Manager and is an exempted
company incorporated with limited liability in the Cayman Islands.
Tiresias is registered as an excluded person pursuant to the Securities
Investment Business Law (2004 Revision) of the Cayman Islands.

Tiresias Capital Limited is the investment manager to the Omni Global
Fund Limited, a company incorporated with limited liability under the
 laws of the Cayman Islands, and Claro Global Fund Limited, a company
 incorporated with limited liability under the laws of the Cayman Islands.

Tiresias Capital is also the Investment Advisor to the Hartford Growth
 Fund, an open-ended investment company incorporated in the Bahamas and
 a managed account for First New York Securities LLC and MAP155 segregated
 portfolio.


CUSIP No. 69333Y108 Schedule 13D Page 3 of 4 Pages

Item 3. Source and Amount of Funds or Other Consideration

The reporting person used an aggregate of approximately $30,643,214 of
client funds to purchase the securities reported.

Item 4. Purpose of Transaction

The reporting person purchased the Securities for investment purposes.
The reporting person may acquire further shares or dispose of some or
all of the Securities.

Item 5. Interest in Securities of the Issuer
At the time of filing this report, the aggregate number of securities
is 603,539 representing 2.84% of the shares outstanding. The reporting
 person, Tiresias Capital Limited, has the sole power to direct the vote
and dispose or direct the disposition of securities. The transactions in
the class of securities are set out below identifying the transactions,
price, amount and identity of the fund money used. 5(d) and (e) do not
apply

CUSIP No. 69333Y108 Schedule 13D Page 4 of 4 Pages


Fund Trade Date Type Price Amount Gross Price USD Value
Claro Fund 21-Jun-12 Sell 51.4 5,004.00 51.4 -257,205.60
Claro Fund 21-Jun-12 Sell 51.38 31,500.00 51.38 -1,618,470.00
Claro Fund 20-Jun-12 Sell 51.4013 2,196.00 51.4013 -112,877.25
Claro Fund 14-Jun-12 Sell 50.9593 3,021.00 50.9593 -153,948.05
Claro Fund 13-Jun-12 Purchase 51.11 9,450.00 51.11 482,989.50
Claro Fund 12-Jun-12 Purchase 51.1 31,500.00 51.1 1,609,650.00
Claro Fund 12-Jun-12 Purchase 51.1089 15,750.00 51.1089 804,965.18
Claro Fund 12-Jun-12 Purchase 51.10 3,150.00 51.10 160,965.00
Claro Fund 08-Jun-12 Purchase 51.12 1,309.00 51.12 66,921.71
Claro Fund 06-Jun-12 Purchase 50.96 12,600.00 50.96 642,033.00
Claro Fund 04-Jun-12 Purchase 50.755 2,656.00 50.755 134,805.28
Claro Fund 22-May-12 Purchase 51.2945 3,240.00 51.2945 166,194.18
Claro Fund 01-May-12 Sell 51.4952 2,970.00 51.4952 -152,940.74
Claro Fund 01-May-12 Purchase 51.44 2,970.00 51.44 152,776.80
Hartford Growth 21-Jun-12 Sell 51.4 14,273.00 51.4 -733,632.20
Hartford Growth 21-Jun-12 Sell 51.38 84,581.00 51.38 -4,345,771.78
Hartford Growth 20-Jun-12 Sell 51.4013 6,115.00 51.4013 -314,318.95
Hartford Growth 14-Jun-12 Sell 50.9593 8,617.00 50.9593 -439,116.29
Hartford Growth 13-Jun-12 Purchase 51.11 26,955.00 51.11 1,377,670.05
Hartford Growth 12-Jun-12 Purchase 51.1 89,850.00 51.1 4,591,335.00
Hartford Growth 12-Jun-12 Purchase 51.1089 44,925.00 51.1089 2,296,067.33
Hartford Growth 12-Jun-12 Purchase 51.10 8,985.00 51.10 459,133.50
Hartford Growth 08-Jun-12 Purchase 51.12 3,735.00 51.12 190,949.26
Hartford Growth 06-Jun-12 Purchase 50.96 30,521.00 50.96 1,555,197.56
Hartford Growth 04-Jun-12 Purchase 50.755 2,949.00 50.755 149,676.50
Hartford Growth 22-May-12 Purchase 51.2945 11,670.00 51.2945 598,606.82
Hartford Growth 01-May-12 Sell 51.4952 10,670.00 51.4952 -549,453.78
Hartford Growth 01-May-12 Purchase 51.44 10,670.00 51.44 548,864.80
First New York 21-Jun-12 Sell 51.4 7,133.00 51.4 -366,636.20
First New York 21-Jun-12 Sell 51.38 50,169.00 51.38 -2,577,683.22
First New York 20-Jun-12 Sell 51.4013 3,281.00 51.4013 -168,647.67
First New York 14-Jun-12 Sell 50.9593 4,306.00 50.9593 -219,430.75
First New York 13-Jun-12 Purchase 51.11 13,470.00 51.11 688,451.70
First New York 12-Jun-12 Purchase 51.1 44,900.00 51.1 2,294,390.00
First New York 12-Jun-12 Purchase 51.1089 22,450.00 51.1089 1,147,394.81
First New York 12-Jun-12 Purchase 51.10 4,490.00 51.10 229,439.00
First New York 08-Jun-12 Purchase 51.12 1,866.00 51.12 95,397.94
First New York 06-Jun-12 Purchase 50.96 23,379.00 50.96 1,191,276.95
First New York 04-Jun-12 Purchase 50.755 8,368.00 50.755 424,717.84
First New York 01-May-12 Purchase 51.5249 4,270.00 51.5249 220,011.32
First New York 01-May-12 Sell 51.4952 4,270.00 51.4952 -219,884.50
First New York 01-May-12 Purchase 51.44 4,270.00 51.44 219,648.80
Omni Global Fund 21-Jun-12 Sell 51.4 44,043.00 51.4 -2,263,810.20
Omni Global Fund 21-Jun-12 Sell 51.38 281,843.00 51.38 -14,481,093.34
Omni Global Fund 20-Jun-12 Sell 51.4013 19,462.00 51.4013 -1,000,372.10
Omni Global Fund 14-Jun-12 Sell 50.9593 26,590.00 50.9593 -1,355,007.79
Omni Global Fund 13-Jun-12 Purchase 51.11 83,175.00 51.11 4,251,074.25
Omni Global Fund 12-Jun-12 Purchase 51.1 277,250.00 51.1 14,167,475.00
Omni Global Fund 12-Jun-12 Purchase 51.1089 138,625.00 51.1089 7,084,971.26
Omni Global Fund 12-Jun-12 Purchase 51.10 27,725.00 51.10 1,416,747.50
Omni Global Fund 08-Jun-12 Purchase 51.12 11,524.00 51.12 589,156.43
Omni Global Fund 06-Jun-12 Purchase 50.96 110,900.00 50.96 5,650,909.50
Omni Global Fund 04-Jun-12 Purchase 50.755 26,758.00 50.755 1,358,102.29
Omni Global Fund 22-May-12 Purchase 51.2945 29,250.00 51.2945 1,500,364.13
Omni Global Fund 01-May-12 Sell 51.4952 26,750.00 51.4952 -1,377,496.60
Omni Global Fund 01-May-12 Purchase 51.44 26,750.00 51.44 1,376,020.00
MAP_155 21-Jun-12 Sell 51.4 8,975.00 51.4 -461,315.00
MAP_155 21-Jun-12 Sell 51.38 51,907.00 51.38 -2,666,981.66
MAP_155 20-Jun-12 Sell 51.4013 3,809.00 51.4013 -195,787.55
MAP_155 14-Jun-12 Sell 50.9593 5,419.00 50.9593 -276,148.45
MAP_155 13-Jun-12 Purchase 51.11 16,950.00 51.11 866,314.50
MAP_155 12-Jun-12 Purchase 51.1 56,500.00 51.1 2,887,150.00
MAP_155 12-Jun-12 Purchase 51.1089 28,250.00 51.1089 1,443,826.43
MAP_155 12-Jun-12 Purchase 51.10 5,650.00 51.10 288,715.00
MAP_155 08-Jun-12 Purchase 51.12 2,348.00 51.12 120,039.86
MAP_155 06-Jun-12 Purchase 50.96 22,600.00 50.96 1,151,583.00
MAP_155 22-May-12 Purchase 51.2945 5,840.00 51.2945 299,559.88
MAP_155 01-May-12 Sell 51.4952 5,340.00 51.4952 -274,984.37
MAP_155 01-May-12 Purchase 51.44 5,340.00 51.44 274,689.60





Item 6. Contracts, Arrangements, Understandings or Relationships
with Respect to Securities of the Issuer

Tiresias Capital Limited is the investment manager to the Omni Global
Fund Limited, a company incorporated with limited liability under the
 laws of the Cayman Islands, and Claro Global Fund Limited, a company
 incorporated with limited liability under the laws of the Cayman Islands.

Tiresias Capital is also the Investment Advisor to the Hartford Growth
 Fund, an open-ended investment company incorporated in the Bahamas and
 a managed account for First New York Securities LLC and MAP155 segregated
 portfolio.

Item 7. Material to be Filed as Exhibits. N/A

SIGNATURE

 After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

Dated: 22 June 2012
TIRESIAS CAPITAL LIMITED
Name: DIRECTOR GAVIN SIMPSON

P.F.Changs China Bistro, Inc. (MM) (NASDAQ:PFCB)
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